Showing posts with label Quantum. Show all posts
Showing posts with label Quantum. Show all posts

Sunday, November 15, 2020

NTT researchers streamline quantum calculations with ZX-Calculus

Researchers at NTT are pursuing a novel method to reduce the resources associated with large-scale fault-tolerant quantum circuits by employing ZX-calculus.

Currently, a fault-tolerant quantum circuit for a given computation requires a huge amount of resources, both in terms of qubits and computational time. The researchers at NTT have found an efficient method to compress such circuits with the purpose of decreasing their hardware demands. They use ZX-Calculus as an intermediate language to reduce both the number of qubits and time required to perform such computation in many different circuits. 

A paper on the topic discusses an improvement of a 40% compression rate with respect to previous reductions, yielding compression rates higher than 70% compared to the initial circuit. The methodology proposed in this work promises to open new venues of research in large-scale quantum computing and bring quantum computation closer to reality by relaxing its hardware demands.

https://www.ntt.co.jp/news2020/2011e/201112a.html


Sunday, October 18, 2020

NTT reports quantum transport phenomena in thin film

 Researchers at NTT in Japan, in collaboration with the Tanaka Research Group at The University of Tokyo, reported the first observation of a quantum transport phenomena occuring in a thin film substance.

The material exhibited an an exotic state called “magnetic Wey semimetal".  The researchers also revealed the existence of the exotic state in SrRuO3 by theoretical calculation as well, which was carried out in collaboration with the Das Research Group at the Tokyo Institute of Technology .

NTT said the results provide robust evidence for the existence of the magnetic Weyl semimetal state in materials as well as insight into the quantum transport properties in such an exotic state and their emerging mechanisms. The research could lead to innovative oxide materials and novel quantum devices in the future.

This research was reported in Nature Communications on October 9, 2020.


https://www.ntt.co.jp/news2020/2010e/201009a.html




Thursday, September 3, 2020

Verizon tests Quantum Key Distribution

Verizon set-up a trial Quantum Key Distribution (QKD) network in the Washington D.C. area.

Live video was captured outside of three Verizon locations in the D.C. area, including the Washington DC Executive Briefing Center, the 5G Lab in D.C and Verizon’s Ashburn, VA office. Using a QKD network, quantum keys were created and exchanged over a fiber network between Verizon locations. Video streams were encrypted and delivered more securely allowing the recipient to see the video in real-time while ensuring hackers are instantly detected.

A QKD network derives cryptographic keys using the quantum properties of photons to prevent against eavesdropping. Verizon also demonstrated that data can be further secured with keys generated using a Quantum Random Number Generator (QRNG) that creates truly random numbers that can’t be predicted. With QKD, encryption keys are continuously generated and are immune to attacks because any disruption to the channel breaks the quantum state of photons signaling
eavesdroppers are present.

"The use of quantum mechanics is a great step forward in data security,” said Christina Richmond, analyst at IDC. “Verizon's own tests, as well other industry testing, have shown that deriving "secret keys" between two entities via light photons effectively blocks perfect cloning by an eavesdropper if a key intercept is attempted. Current technological breakthroughs have proven that both the quantum channel and encrypted data channel can be sent over a single optical fiber. Verizon has demonstrated this streamlined approach brings greater efficiency for practical large-scale implementation allowing keys to be securely shared over wide-ranging networks.”


https://www.verizon.com/about/news/verizon-achieves-milestone-future-proofing-data-hackers

Thursday, August 20, 2020

IBM reaches Quantum Volume 64 on a 27-qubit system

IBM reached a new milestone on its quantum computing road map, achieving the company's highest Quantum Volume to date: 64, uaing one of its newest 27-qubit client-deployed systems.

Quantum Volume measures the length and complexity of circuits – the higher the Quantum Volume, the higher the potential for exploring solutions to real world problems across industry, government, and research.

"We are always finding new ways to push the limits of our systems so that we can run larger, more complex quantum circuits and more quickly achieve a Quantum Advantage," said Jay Gambetta, IBM Fellow and Vice President, IBM Quantum. "IBM's full-stack approach gives an innovative avenue to develop hardware-aware applications, algorithms and circuits, all running on the most extensive and powerful quantum hardware fleet in the industry."

IBM Quantum Highlights

  • IBM has reached Quantum Volume 64 on a 27-qubit system deployed within the IBM Q Network [https://www.ibm.com/quantum-computing/network/overview/]
  • 28 quantum computing systems deployed on the IBM Cloud over the last four years with eight systems boasting a Quantum Volume of 32
  • The IBM Q Network has 115 client, government, startup, partner, and university members
  • 250,000+ registered users of the IBM Quantum Experience [https://www.ibm.com/quantum-computing/technology/experience/]
  • Users routinely execute more than 1 Billion hardware circuits per day on IBM Quantum systems on the IBM Cloud 
  • Researchers have published 250+ papers based on work on IBM Quantum systems

Thursday, August 6, 2020

OSA Quantum 2.0 Keynotes - 14 – 17 September

Distinguished keynote speakers from academia and industry will present latest developments in quantum systems and quantum computing at the inaugural OSA Quantum 2.0 conference to be co-located as an all-virtual event with OSA Frontiers in Optics and Laser Science APS/DLS (FiO + LS) conference 14 – 17 September. The meetings are available at no cost to registrants.

Ignacio Cirac, director of the Theory Division at the Max Planck Institute of Quantum Optics and Honorary Professor at the Technical University of Munich, will introduce two quantum algorithms to determine finite energy and temperature properties of many-body quantum systems. In his talk, Cirac will explain how both can be used with Noisy Intermediate Scale Quantum (NISQ) and analog quantum simulators.

While the demonstration of a universal, fault-tolerant, quantum computer remains a goal, it has informed the design of a prototype. Marissa Giustina, senior research scientist and quantum electronics engineer in the Google AI Quantum, USA, will introduce Google’s quantum computing effort from both hardware and quantum-information perspectives in her plenary talk titled “Building Google’s Quantum Computer.”

In his talk titled “Quantum Technologies for Long-Term Data Security,” Gregoire Ribordy, co-founder and CEO of ID Quantique, Switzerland, will describe solutions to the threat of quantum computing to our information security infrastructure. He will review the current state of the art of practical quantum key distribution and quantum random number generators. Ribordy will also discuss current areas of research and present examples of applications and use cases.

Plenary speaker Mikhail Lukin, co-director of the Harvard Quantum Initiative in Science and Engineering and co-director of the Harvard-MIT Center for Ultracold Atoms, USA, will describe the recent advances involving programmable, coherent manipulation of quantum many-body systems using atom arrays excited into Rydberg states. In his talk, Lukin will also discuss progress towards realization of quantum repeaters for long-distance quantum communication. 

Technical sessions will be presented live from the Eastern Daylight Time Zone (EDT) with a recorded archive available later for on-demand viewing. The keynote talks are scheduled for 10:00 – 10:45 EDT, 14 – 17 September.

Industry and academic leaders will discuss new approaches for training current and future quantum engineers in a panel titled “Workforce Development in Quantum Science and Technology” to be held Tuesday, 15 September, 15:45 – 16:45 EDT.

The all-virtual Quantum 2.0 conference will bring together scientists, engineers and others working to advance quantum science and the technical innovations needed to introduce practical quantum technologies and ultimately commercializable products based on Quantum 2.0 to market. Academic, government and industry researchers will have the opportunity to interact and discover common ground, and potentially build collaborations leading to new concepts or development opportunities.

Key topic areas include Quantum Computing & Simulation; Quantum Communication Systems; Quantum Metrology & Sensors; Hybrid Systems; Quantum Interconnects; Quantum Photonic Sources & Detectors; Integrated-optics Quantum Platforms & Devices; Optical & Laser Technology for QIST Systems. Conference registration is now open.

https://www.osa.org/en-us/meetings/topical_meetings/quantum/registration/

Sunday, August 2, 2020

MIT advances quantum information sharing between processors

Researchers at MIT are developing an on-off system that leverages "giant atoms" to enable high-fidelity operations and interconnection between processors.

A key challenge in quantum computing has been to communicate quantum information between distant parts of a processor.

In a paper published in the journal Nature, the MIT researchers constructed “giant artificial atoms” from superconducting quantum bits, or qubits, connected in a tunable configuration to a microwave transmission line, or waveguide.

“Coupling a qubit to a waveguide is usually quite bad for qubit operations, since doing so can significantly reduce the lifetime of the qubit,” says Bharath Kannan, MIT graduate fellow and first author of the paper. “However, the waveguide is necessary in order to release and route quantum information throughout the processor. Here, we’ve shown that it’s possible to preserve the coherence of the qubit even though it’s strongly coupled to a waveguide. We then have the ability to determine when we want to release the information stored in the qubit. We have shown how giant atoms can be used to turn the interaction with the waveguide on and off.”

http://news.mit.edu/2020/giant-atoms-quantum-processing-communication-0729

Wednesday, July 29, 2020

SPIE and University of Glasgow announce quantum photonics program

SPIE, the international society for optics and photonics, and the University of Glasgow announced the establishment of the SPIE Early Career Researcher Accelerator Fund in Quantum Photonics.

A $500,000 gift from the SPIE Endowment Matching Program will be matched 100% by the University. The program will support a diverse group of graduate students working in the field of quantum photonics and will be managed by Professor Daniele Faccio, Royal Academy of Engineering Chair in Emerging Technologies, and Kelvin Chair of Natural Philosophy Professor Miles Padgett.

The fund will create two new programs at the University: an annual SPIE Early Career Researcher in Quantum Photonics Scholarship will be awarded to an outstanding University of Glasgow graduate student who is in the process of completing their studies. In addition, the SPIE Global Early Career Research program will support outgoing and incoming placements at and from the University as part of its ongoing collaboration with leading quantum-photonics research groups across the globe. Each year, the program will pair several University early-career researchers with counterparts from outside laboratories for six-month-long shared projects.

“We are delighted to be participating in these exciting endeavors with the University of Glasgow,” said SPIE President John Greivenkamp. “The interactive placements will offer transformative opportunities the university’s academic and industry-based researchers, and, together with the annual scholarship, will develop well-prepared, knowledgeable early-career researchers who will drive the future of the quantum industry.”

“We’re pleased and proud to be establishing the Early Career Researcher Accelerator Fund in Quantum Photonics thanks to SPIE’s generous gift, which we’re very happy to match with our own funding,” said Professor Sir Anton Muscatelli, principal and vice-chancellor of the University of Glasgow:. “The University’s quantum photonics expertise is world-leading, and our researchers have found ways to see through walls, capture images at a trillion frames per second, and take the very first pictures of quantum entanglement in action. This additional funding will help the University train a new generation of graduate students to make valuable contributions to academia and industry and inspire them to make their own amazing research breakthroughs.”

https://www.spie.org/news/spie-and-university-of-glasgow-announce-one-million-dollar-quantum-photonics-program-

Thursday, July 23, 2020

Blueprint for the Quantum Internet

The U.S. Department of Energy (DOE) outlined a blueprint strategy for the development of a national Quantum Internet.

The DoE's 17 national laboratories will serve as the first nodes on the Quantum Internet. Also participating will be the National Science Foundation, the Department of Defense, the National Institute for Standards and Technology, the National Security Agency, and NASA. The academic community and industry will also be invited.

At a launch event hosted by the University of Chicago, officals described the initiative as "bringing the United States to the forefront of the global quantum race and ushering in a new era of communications."

“The Department of Energy is proud to play an instrumental role in the development of the national quantum internet,” said U.S. Secretary of Energy Dan Brouillette. “By constructing this new and emerging technology, the United States continues with its commitment to maintain and expand our quantum capabilities.”

In February, scientists from DOE’s Argonne National Laboratory in Lemont, Illinois, and the University of Chicago entangled photons across a 52-mile “quantum loop” in the Chicago suburbs, successfully establishing one of the longest land-based quantum networks in the nation. That network will soon be connected to DOE’s Fermilab in Batavia, Illinois, establishing a three-node, 80-mile testbed.

“The combined intellectual and technological leadership of the University of Chicago, Argonne, and Fermilab has given Chicago a central role in the global competition to develop quantum information technologies,” said Robert J. Zimmer, president of the University of Chicago. “This work entails defining and building entirely new fields of study, and with them, new frontiers for technological applications that can improve the quality of life for many around the world and support the long-term competitiveness of our city, state, and nation.”

 “Argonne, Fermilab, and the University of Chicago have a long history of working together to accelerate technology that drives U.S. prosperity and security,” said Argonne Director Paul Kearns. “We continue that tradition by tackling the challenges of establishing a national quantum internet, expanding our collaboration to tap into the vast power of American scientists and engineers around the country.”

Video of the event
https://www.youtube.com/watch?v=cR0wVCs9DxI

Technical report: From Long-distance Entanglement to Building a Nationwide Quantum Internet
https://www.osti.gov/biblio/1638794/

Sunday, July 12, 2020

MIT's “Light squeezer” reduces quantum noise in lasers

Researchers at MIT have developed a quantum “light squeezer” that reduces quantum noise in an incoming laser beam by 15%.

The portable light squeezer works at room temperature and could be used to improve laser measurements where quantum noise is a limiting factor. The setup is based on a marble-sized optical cavity, housed in a vacuum chamber and containing two mirrors, the first of which is smaller than the diameter of a human hair. The second, larger, nanomechanical mirror, which suspended by a spring-like cantileve, is the key to the system’s ability to work at room temperature.

“The importance of the result is that you can engineer these mechanical systems so that at room temperature, they still can have quantum mechanical properties,” says Nergis Mavalvala, the Marble Professor and associate head of physics at MIT. “That changes the game completely in terms of being able to use these systems, not just in our own labs, housed in large cryogenic refrigerators, but out in the world.”

http://news.mit.edu/2020/quantum-noise-laser-precision-wave-detection-0707

Wednesday, July 8, 2020

MIT: Scaling up the quantum chip

Researchers at MIT have achieved a breakthrough in the field of scalable quantum processors by developing a process to manufacture and integrate “artificial atoms,” created by atomic-scale defects in microscopically thin slices of diamond, with photonic circuitry.

A team, led by Dirk Englund, an associate professor in MIT’s Department of Electrical Engineering and Computer Science, were able to build a 128-qubit system — the largest integrated artificial atom-photonics chip to date. The hybrid manufacturing approach iused carefully selected “quantum micro chiplets” containing multiple diamond-based qubits placed on an aluminum nitride photonic integrated circuit.

“In the past 20 years of quantum engineering, it has been the ultimate vision to manufacture such artificial qubit systems at volumes comparable to integrated electronics,” Englund says. “Although there has been remarkable progress in this very active area of research, fabrication and materials complications have thus far yielded just two to three emitters per photonic system.”

http://news.mit.edu/2020/scaling-quantum-chip-0708

Monday, July 6, 2020

Researchers test quantum entanglement from nanosatellite

Researchers from the National University of Singapore and NASA generated and detected quantum entanglement onboard a CubeSat nanosatellite orbiting the Earth.

The experiment demonstrated that a miniaturized source of quantum entanglement can operate successfully in space aboard a low-resource, cost-effective CubeSat that is smaller than a shoebox (10 cm × 10 cm × 10 cm).

The photon-pair source consisted of a blue laser diode that shines on nonlinear crystals to create pairs of photons. Achieving high-quality entanglement required a complete redesign of the mounts that align the nonlinear crystals with high precision and stability. The nanosatellite, named SpooQy-1, was deployed into orbit from the International Space Station on 17-June-2019. The instrument successfully generated entangled photon-pairs over temperatures from 16 °C to 21.5 °C.

“In the future, our system could be part of a global quantum network transmitting quantum signals to receivers on Earth or on other spacecraft,” said lead author Aitor Villar from the Centre for Quantum Technologies at the National University of Singapore. “These signals could be used to implement any type of quantum communications application, from quantum key distribution for extremely secure data transmission to quantum teleportation, where information is transferred by replicating the state of a quantum system from a distance.”

A report on the project was published in Optica, The Optical Society's (OSA) journal for high impact research.

The researchers are now working with RALSpace in the UK to design and build a quantum nanosatellite similar to SpooQy-1 with the capabilities needed to beam entangled photons from space to a ground receiver. This is slated for demonstration aboard a 2022 mission.

https://www.osa.org/en-us/about_osa/newsroom/news_releases/2020/quantum_entanglement_demonstrated_aboard_orbiting/

Wednesday, June 17, 2020

NEC teams with D-Wave on Quantum development

NEC Corporation has formed a partnership with D-Wave Systems and invested $10 million in the firm, which is known for its pioneering work in quantum computing systems, software and services.

The two companies will work together on the development of hybrid quantum/classical technologies and services that combine the best features of classical computers and quantum computers; the development of new hybrid applications that make use of those services; and joint marketing and sales go-to-market activities to promote quantum computing.

Under the partnership, the companies will build on the existing hybrid tools of D-Wave's Leap quantum cloud service to develop hybrid services capable of solving large combinatorial optimization problems at high speed, by combining D-Wave’s quantum annealing technology with NEC’s supercomputers. The newly developed services will be available to customers of both companies through Leap.

In addition, the companies will apply D-Wave's collection of over 200 early customer applications to six markets identified by NEC, such as finance, manufacturing and distribution. The two companies will also explore the possibility of enabling the use of NEC's supercomputers on D-Wave’s Leap quantum cloud service.

“We are very excited to collaborate with D-Wave. This announcement marks the latest of many examples where NEC has partnered with universities and businesses to jointly develop various applications and technologies. Our work with D-Wave has a special focus on developing hybrid quantum computing services and enhancing related hybrid quantum software applications, accelerating commercial-grade quantum solutions globally. This collaborative agreement aims to leverage the strengths of both companies to fuel quantum application development and business value today,” said Motoo Nishihara, Executive Vice President and CTO, NEC.

"Japan has long been a global leader in quantum computing, from the advent of quantum annealing to today's continued commercial research and development. By combining efforts with NEC, we believe we can bring even more quantum benefit to the entire Japanese market that is building business-critical hybrid quantum applications in both the public and private sectors," said Alan Baratz, CEO of D-Wave. "NEC is a proven pioneer of world-changing technology, and we're united in the belief that hybrid software and systems are the future of commercial quantum computing. Our joint collaboration will further the adoption of quantum computing in the Japanese market and beyond."

http://www.dwavesys.com

Monday, June 1, 2020

OIDA Quantum Photonics Roadmap: Every Photon Counts

A newly released Quantum Photonics Roadmap: Every Photon Counts, which was produced by OSA Industry Development Associates (OIDA) in collaboration with Corning, clarifies the applications and timing for quantum technologies and specifies improvements in optics and photonics components needed to enable commercialization. It covers the three major application areas: quantum sensing and metrology, quantum communications and quantum computing.

Commercialization of products such as quantum sensors for GPS-free navigation and field-deployable quantum repeaters for communications will be significant milestones in an emerging market but more investments in product engineering are critical. Lower SWAP-C devices would enable progress, for example, across multiple sensing categories, and integration of these systems onto photonic chips is a critical path to doing so. While some integration is possible today, more on-chip functionality (e.g., sources, modulators, switches) is needed.

“While the field still needs breakthroughs in quantum science, such as a quantum repeater, the photonics technology already largely exists for laboratory experiments,” says Tom Hausken, senior industry advisor, The Optical Society (OSA). “The product engineering -- low size, weight, power and cost -- is missing, or it is applied to a specific customer application, without benefit to the rest of the field. The need is analogous to the talent shortage, not just with scientists, but with engineers in photonics, microwave and control electronics, packaging and cryogenics who have the specialized expertise to bring the technology to market.”



Although the quantum technology market is still in the early stages, the optics and photonics community already supplies critical enabling components to research and development labs in the near term to ensure progress. OIDA estimates sales of optics and photonics for lab equipment used by quantum researchers at about US$100 million per year. The commercial market for quantum end-use products is expected to rise to billions of dollars by 2030.

“The real impact of quantum technology is what it can do, which could be far greater than the market for the technology itself,” Hausken adds. “The fear of missing out (FOMO) on that impact on competitiveness and security is driving funding in quantum research, which OIDA estimates at about US$2 billion annually.”

The public and private sectors worldwide are making multi-year investments in quantum technologies with an end-goal of market ready applications. In the U.S., the National Quantum Initiative Act, a multi-agency plan, proposes US$1.2 billion in funding for quantum information science over five-years. The European Union’s Quantum Flagship program is budgeted at 1 billion euros over a ten-year period.

Investments in the product engineering of quantum technology could support classical applications as well. For example, investments in lower loss integrated photonics and single-photon detectors could yield benefits in classical optical communications and low-light imaging, respectively. Integrated photonics offers many promising solutions for quantum technology, at a time when it offers multiple solutions in other fields.

To read the full report, visit http://www.osa.org/OIDARoadmap

Friday, May 15, 2020

SK Telecom shows 5G phone with quantum random number generator

SK Telecom, together with Samsung Electronics and ID Quantique, demonstrated the first 5G smartphone equipped with a quantum random number generator chipset.

The Samsung Galaxy A Quantum with integrated quantum-enhanced cryptography will allow customers to experience advanced security through two-factor authentication for T-ID, biometric authentication-based payment for SK Pay and mobile e-certification service.

“Securing mobiles phones has become a top priority for mobile operators, who are also looking to generate new revenues,” Says Grégoire Ribordy, co-founder and CEO of ID Quantique. “With its compact size and low power consumption, our latest Quantis QRNG chip can be embedded in any smartphone, to ensure trusted authentication and encryption of sensitive information. It will bring a new level of security to the mobile phone industry.”

  • Last year, SK Telecom and ID Quantique were awarded quantum communication network-building projects in the U.S. and Europe (EU), and applied QRNG to SK Telecom’s 5G authentication center (AuC) for the first time in the world. Going forward, SK Telecom will expand its footprint in the quantum security business by integrating QRNGs to more devices and networks.



Tuesday, May 12, 2020

ADVA supports Quantum-Secure VPN (QuaSiModO) project

ADVA is playing a key role in a unique research initiative extending post-quantum security to VPN networks.

The company has supplied its ADVA FSP 150 with ConnectGuard Ethernet encryption for the Quantum-Secure VPN Modules and Operation Modes (QuaSiModO) project, which is being conducted by the Fraunhofer Institute of Applied and Integrated Security, the Ludwig Maximilian University of Munich and genua GmbH. Funding is provided by the German Federal Ministry of Education and Research.

The QuaSiModO project is testing new quantum-resistant algorithms in the packet domain. The goal is to develop viable security solutions that can protect Layer 2 and 3 data against all forms of cyberattack, including those from quantum computers.

“As part of the QuaSiModO project, we’re continuing to drive innovation in future-proof cryptography. This initiative extends comprehensive post-quantum security to VPNs and enables businesses and government institutions to protect their data from tomorrow’s attacks,” said Jörg-Peter Elbers, SVP, advanced technology, ADVA. “Together with our partners, we’re ensuring that network security technology doesn’t fall behind in the computing power race. Our role in the project combines our experience with transport layer post-quantum security and our proven expertise when it comes to encrypting Carrier Ethernet connectivity. We’re helping to create a solution able to protect packet services today and ready to be upgraded later to comply with emerging specifications from standards bodies such as the USA’s National Institute of Standards and Technology.”

“When quantum computers emerge, they’ll be able to quickly crack complex problems that would take today’s most powerful supercomputers many years to solve. That’s why enterprises, governments and communication service providers are looking to leverage security technology built on quantum-safe algorithms,” commented Alexander von Gernler, head of research, genua GmbH. “For a decade, we’ve been focused on the threat posed by large quantum computers, and much of our work in recent years has been about developing practical quantum-resistant signatures and key establishment protocols. Now, we’re leading the QuaSiModO consortium, working with ADVA and the other partners to bring post-quantum security to network Layers 2 and 3, and deliver the robust future-proof protection that classical encryption technologies simply can’t.”

https://www.adva.com/en/newsroom/press-releases/20200512-adva-brings-post-quantum-security-to-packet-networks

https://www.genua.de/en/news/insights/2019/new-quasimodo-research-project-launched.html


Europe's OPENQKD uses ADVA for quantum key distribution

The OPENQKD project, whose mission is to create and trial a secure communication network across Europe based on quantum key distribution (QKD), will leverage ADVA's FSP 3000 and FSP 150 platforms.

ADVA will provide optical and Ethernet encryptors as well as open line systems for multiple testbed locations.

OPENQKD, which is funded by the European Commission, seeks to accelerate the commercial adoption of QKD technology and to promote interoperability through an ecosystem of 38 partners, including academic institutions, network operators, and manufacturers of network and QKD equipment.

“By bringing our technology and expertise to the OPENQKD project, we’re helping to address vital security issues in critical communications. Whether in telecoms or government networks, quantum hacking puts the long-term security of sensitive data at risk,” said Helmut Grießer, director, advanced technology, ADVA. “Our ConnectGuard™ encryption technology has earned a strong reputation for protecting service provider and enterprise networks while ensuring highest capacity, lowest latency and maximum scale. In OPENQKD, we’ll demonstrate in practical use cases how our ConnectGuard™ technology can be augmented with QKD to make encrypted communication resistant against quantum computer attacks.”

https://www.adva.com/en/newsroom/press-releases/20200128-adva-to-play-key-role-in-openqkd-project

Quantum Network Link goes live in UK

The world’s first commercial-grade quantum test network link is now operational between the BT Labs in Suffolk and the Cambridge node of the UK’s new Quantum Network, which is being built by the Quantum Communications Hub, a collaboration between research and industry, supported by the UK’s National Quantum Technologies Programme. The new connection stretches from BT’s Adastral Park research campus near Ipswich in the East of England, to Cambridge. The wider UKQN network then extends onward over the National Dark Fibre Infrastructure Service to Bristol in the South-West.

The link uses over 125km of standard BT optical fibre between Cambridge and Adastral Park, with BT Exchanges acting as ‘trusted nodes’ along the route. The link will carry both quantum and non-quantum traffic; the QKD technique shares data encryption keys via an ultra-secure quantum channel over the same fibre that carries the encrypted data itself.

ADVA confirmed that its FSP 3000 is playing a key role in the new UKQNtel transport network secured by quantum key distribution (QKD). As part of an initiative led by QComm Hub, and with partners BT, ID Quantique and the universities of Cambridge and York, ADVA has constructed a QKD link capable of carrying classical and quantum channels on the same standard, installed fiber.

Monday, March 30, 2020

NTT develops quantum light source for optical quantum computer chip

Researchers at NTT have developed a wide-band, high-performance quantum light source (squeezed light source) that could be used for optical quantum computer chips operating at room temperature.

The breakthrough finds that squeezed light has compressed quantum noise that can be used to create quantum entanglement. The light source can output continuous-wave wide-bandwidth high-level squeezed light. The light source can also increase the clock frequency of the quantum computer itself, setting a course for high-speed quantum computation.

NTT said the reserachers succeeded in compressing more than 75% of the quantum noise by using a high-performance nonlinear optical waveguide fabricated by NTT and a high-quality optical control and measurement technology of the University of Tokyo.

Looking ahead, the researchers aim to demonstrate the generation of large-scale entanglement states and various optical quantum operations for the realization of universal quantum computers using this wideband squeezed light.

A paper on this research will be published in “APL Photonics” on March 30, 2020.

https://www.ntt.co.jp/news2020/2003e/200330b.html



Wednesday, March 25, 2020

NTT Research and Stanford collaborate on Coherent Ising Machines

NTT Research is collaborating with Stanford University on a National Science Foundation (NSF)-funded initiative into Coherent Ising Machines (CIMs), which exploit unique combinations of optical and electronic components for connectivity, speed, scale and memory.

The NSF has granted a $10 million Expeditions in Computing (Expeditions) award to Stanford’s Department of Applied Physics for research into the use of CIMs for optimization, machine learning and neuromorphic computing.

NTT Research confirmed that its PHI Lab is already conducting related joint research with Stanford, and PHI Lab Director Yoshihisa Yamamoto will serve as an external unfunded collaborator to the Stanford-led NSF Expeditions CIMs team.

“I am excited that the NSF has deemed this project worthy of significant support and look forward to collaborating with the Expeditions team in whatever way can best add value to this important undertaking,” said NTT Research PHI Lab Director Yamamoto. “Stanford is a key research collaborator in our consortium of institutions exploring this new computing paradigm that draws upon quantum physics, neuroscience and optical technology, and we strongly believe that continued collaboration in basic research is key to driving further advances in this field.”

The principal investigator for this five-year project is Hideo Mabuchi, professor and former chair of Stanford University’s department of applied physics in the School of Humanities and Sciences. The rest of the team includes three from Stanford and three from other universities. The Stanford co-investigators are Marty Fejer, professor of applied physics; Surya Ganguli, associate professor of applied physics; and Marco Pavone, assistant professor of aeronautics and astronautics and director of the Autonomous Systems Laboratory. The other co-investigators are Peter McMahon, assistant professor, applied and engineering physics, Cornell University; Alireza Marandi, assistant professor of electrical engineering and applied physics, Caltech; and Davide Venturelli, quantum computing team lead and science operations manager of the Research Institute of Advanced Computer Science (RIACS) at USRA. In addition to PHI Lab Director Yamamoto, the three external collaborators are Eleanor Rieffel, senior research scientist and lead, Quantum AI Lab (QuAIL) NASA Ames Research Center; Helmut Katzgraber, principal research manager, Microsoft; and Ken-ichi Kawarabayashi, professor and Deputy Director, National Institute of Informatics (Tokyo).

NTT Research PHI Lab launched its own CIM-based initiative last fall, when it announced five-year joint research agreements with six universities (CalTech, Cornell, Michigan, MIT, Stanford and Swinburne), one US Federal Agency (NASA Ames Research Center) and one private quantum computing software company (1QBit). “The significant investment by NSF into this Stanford-led initiative complements our own efforts,” said Kazuhiro Gomi, NTT Research President and CEO. “In effect, taken together, they represent an important private-public strategy for supporting this critical area of research.”

Wednesday, February 19, 2020

Intel outlines "Horse Ridge" cryogenic quantum control chip

Intel Labs, in collaboration with QuTech ‑ a partnership between TU Delft and TNO (Netherlands Organization for Applied Scientific Research) ‑ outlined key technical features of its new cryogenic quantum control chip codenamed "Horse Ridge". The research is aimed at integrating silicon spin qubit devices and cryogenic controls in a streamlined package.

Some highlights:

Scalability: The integrated SoC design, implemented using Intel’s 22nm FFL (FinFET Low Power) CMOS technology, integrates four radio frequency (RF) channels into a single device. Each channel is able to control up to 32 qubits leveraging “frequency multiplexing” – a technique that divides the total bandwidth available into a series of non-overlapping frequency bands, each of which is used to carry a separate signal. Leveraging these four channels, Horse Ridge can potentially control up to 128 qubits with a single device, substantially reducing the number of cables and rack instrumentations previously required.
Fidelity: Increases in qubit count trigger other issues that challenge the capacity and operation of the quantum system. One such potential impact is a decline in qubit fidelity and performance. In developing Horse Ridge, Intel optimized the multiplexing technology that enables the system to scale and reduce errors from “phase shift” – a phenomenon that can occur when controlling many qubits at different frequencies, resulting in crosstalk among qubits.

Intel outlined these details in a research paper released at the 2020 International Solid-State Circuits Conference (ISSCC) in San Francisco. The paper unveils key technical capabilities of Horse Ridge that address fundamental challenges in building a quantum system powerful enough to demonstrate quantum practicality: scalability, flexibility and fidelity.

“Today, quantum researchers work with just a small number of qubits, using smaller, custom-designed systems surrounded by complex control and interconnect mechanisms. Intel’s Horse Ridge greatly minimizes this complexity. By systematically working to scale to thousands of qubits required for quantum practicality, we’re continuing to make steady progress toward making commercially viable quantum computing a reality in our future,” stated Jim Clarke, director of quantum hardware, Intel Labs.

Monday, December 9, 2019

Intel unveils cryogenic control chip for quantum systems

Intel Labs unveiled a cryogenic control chip — code-named “Horse Ridge” — for quantum computing systems. Horse Ridge is a mixed-signal SoC that brings the qubit controls into the quantum refrigerator — as close as possible to the qubits themselves. It effectively reduces the complexity of quantum control engineering from hundreds of cables running into and out of a refrigerator to a single, unified package operating near the quantum device.

Intel said the Horse Ridge design radically simplifies the control electronics required to operate a quantum system. It replaces bulky instruments with a highly-integrated system-on-chip (SoC) that will simplify system design and allow for sophisticated signal processing techniques to accelerate set-up time, improve qubit performance and enable the system to efficiently scale to larger qubit counts. Designed to act as a radio frequency (RF) processor to control the qubits operating in the refrigerator, Horse Ridge is programmed with instructions that correspond to basic qubit operations. It translates those instructions into electromagnetic microwave pulses that can manipulate the state of the qubits.

The Horse Ridge chip, which was developed with TU Delft and TNO (Netherlands Organization for Applied Scientific Research), will enable control of multiple quantum bits (qubits) and set a clear path toward scaling larger quantum systems. Horse Ridge is fabricated using Intel’s 22nm FinFET technology.

“While there has been a lot of emphasis on the qubits themselves, the ability to control many qubits at the same time had been a challenge for the industry. Intel recognized that quantum controls were an essential piece of the puzzle we needed to solve in order to develop a large-scale commercial quantum system. That’s why we are investing in quantum error correction and controls. With Horse Ridge, Intel has developed a scalable control system that will allow us to significantly speed up testing and realize the potential of quantum computing,” states Jim Clarke, Intel’s director of Quantum Hardware.


Monday, December 2, 2019

AWS previews Quantum Computing cloud service

AWS is previewing new, fully-managed quantum computing cloud service based on hardware from D-Wave, IonQ, and Rigetti. The AWS Braket service allows scientists, researchers, and developers to experiment with quantum computing.

The company is also launching an AWS Center for Quantum Computing that will bring together quantum computing experts from Amazon, the California Institute of Technology (Caltech), and other top academic research institutions. In addition, an Amazon Quantum Solutions Lab will connect customers with quantum computing experts from Amazon and its technology and consulting partners.

“With quantum engineering starting to make more meaningful progress, customers are asking for ways to experiment with quantum computers and explore the technology’s potential,” said Charlie Bell, Senior Vice President, Utility Computing Services, AWS. “We believe that quantum computing will be a cloud-first technology and that the cloud will be the main way customers access the hardware. With our Amazon Braket service and Amazon Quantum Solutions Lab, we’re making it easier for customers to gain experience using quantum computers and to work with experts from AWS and our partners to figure out how they can benefit from the technology. And with our AWS Center for Quantum Computing and academic partnerships, we join the effort across the scientific and industrial communities to help accelerate the promise of quantum computing.”

https://aws.amazon.com/braket/