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

Sunday, October 20, 2019

SK Telecom invests in Switzerland's ID Quantique

SK Telecom has made an equity investment in ID Quantique, a start-up based in Switzerland that is developing quantum cryptography.

The European Union has launched a 3-year European research project, named Open Quantum Key Distribution (OPENQKD), that will install test quantum communication infrastructures in several European countries. It will boost the security of critical applications in the fields of telecommunication, finance, health care, electricity supply and government services. The project will lay the groundwork for a pan-European quantum communication infrastructure that uses satellite as well as ground-based solutions. For this €15 million project, the European Union has selected 38 companies and research institutes across the continent, including ID Quantique, Deutsche Telekom, Orange and Nokia.

Since establishing Quantum Tech Lab in 2011, SK Telecom has been making aggressive efforts to develop quantum cryptography technologies to enhance the safety and security of its mobile networks. In March 2019, the company has applied ID Quantique’s Quantum Random Number Generator (QRNG) to its 5G authentication center (AuC) to prevent hacking and ensure quantum-safe security. It has also applied ID Quantique’s Quantum Key Distribution (QKD) technology to the Seoul-Daejeon section – the most data traffic-concentrated section in Korea - of its 5G and LTE networks, to strengthen the security of 5G and LTE data transmission and reception.

“In the 5G era, security will become increasingly important as all connected things will generate data,” said Park Jin-hyo, the Chief Technology Officer of SK Telecom. “SK telecom will make continued investment in quantum cryptography communication technologies to secure the world’s top competitiveness in this area.”

SK Telecom applies Quantum Cryptography to network security

SK Telecom has applied a Quantum Random Number Generator (QRNG) developed by ID Quantique of Switzerland to its 5G authentication center (AuC). QRNG is a device that constantly generates “quantum random numbers,” which creates strong keys that are not biased and cannot be predicted. SK Telecom said it plans to apply the same quantum random number technique to its 4G network as well.

Next month, SK Telecom will also apply ID Quantique’s Quantum Key Distribution (QKD) technology to the Seoul-Daejeon section – the most data traffic-concentrated section in Korea - of its 5G and LTE networks, to strengthen the security of 5G and LTE data transmission and reception. QKD provides ultimate cryptographic security based on the laws of quantum mechanics. It enables two parties to produce a shared random secret key known only to them, which can then be used to encrypt and decrypt messages.

SK Telecom invested US$65 million in ID Quantique in February 2018.

SK Telecom also noted its pivotal role in global standardization of QKD and QRNG technologies at ITU-T. In February 2019, SK Telecom’s two new technologies related to QKD have been selected as work items by ITU-T’s Study Group 17 (SG17), which coordinates security-related work across all ITU-T Study Groups. Combining these two work items with the two on-going work items on QKD and QRNG technologies it proposed in July 2018, SK Telecom is currently leading a total of four meaningful work items in SG 17. In addition, Sim Dong-hi, a delegate from SK Telecom,  is serving as associate-rapporteur on quantum technology in SG17.

“As security emerges as one of the most important issues in the 5G era, SK Telecom is determined to provide the most secure 5G network and focus on expanding the ecosystem by developing quantum cryptography technologies,” said Park Jin-hyo, the Chief Technology Officer of SK Telecom.

Wednesday, April 17, 2019

Zapata raises $21M in series A for quantum computing

Zapata Computing, a start-up that spun out of Harvard University, raised $21 million in Series A financing for its pursuit of quantum computing. New and existing investors include Pitango Ventures, BASF Venture Capital, Robert Bosch Venture Capital, Pillar VC, and The Engine.

Zapata is focused on the software and quantum algorithms to enable the next generation of discoveries — for a wide range of industries including chemistry, pharmaceuticals, logistics, finance and materials — on quantum computers.

“For our Series A, we looked specifically for world-class investors who bring a global reach and a depth of experience in enterprise software and applications,” said Christopher Savoie, CEO and cofounder of Zapata. “The success of Zapata’s quantum software platform in delivering real world advances in computational power for applications — particularly in chemistry, machine learning, and optimization — has sparked an enormous demand from Fortune 100 and Global 1000 enterprises worldwide. The new financing will power our expansion strategy, enabling us to accelerate product development and expand our business into new markets and regions.”

“The playbook for quantum computing is being written right now by first movers like Zapata,” said Alán Aspuru-Guzik, cofounder of Zapata. “As the enterprise demand for our quantum solutions continues unabated, Zapata has a distinct opportunity to aggressively and rapidly cultivate the next generation of quantum science talent who can transform the promise of quantum technology into reality.”

The software is designed to run on the latest quantum hardware made by Google, IBM, Rigetti, Honeywell, IonQ and others.

https://www.zapatacomputing.com/


Tuesday, March 26, 2019

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.

“Today’s launch is a significant step for network security. As well as being the UK’s longest QKD-protected link able to transmit both classical and quantum applications, this solution breaks new ground by showcasing the readiness of quantum cryptography for real-world transport,” said Professor Tim Whitley, MD, research and innovation, BT. “Our team has been at the forefront of developing quantum-secure telecoms infrastructure from day one. We’ve succeeded in taking the technology from PoCs in the lab to real-world demonstrations. Now we’re closing in on enabling customer trials and plans for full-scale deployments. Soon mission-critical networks will be protected even from cybercriminals intent on harvesting information today in order to decode and exploit it tomorrow.”

https://www.btplc.com/News/#/pressreleases/testing-begins-on-uks-ultra-secure-quantum-network-link-ukqntel-between-research-and-industry-2851900

https://www.advaoptical.com/en/newsroom/press-releases/20190326-adva-plays-key-role-in-development-of-uks-quantum-secured-transport-network

Wednesday, June 13, 2018

ADVA FSP 3000 powers UK’s first quantum network

ADVA's FSP 3000 platform is powering a metro transport system in the city of Cambridge that is being used for the UK's first quantum network.

The project, which is conducted by the UK National Quantum Technologies Programme, super-encrypts data using quantum key distribution (QKD) for complete and long-term cryptographic data security.

ADVA said the openness of its ADVA FSP 3000 platform, which can accept keys from third-party systems utilizing standard protocols, is a vital component of the ultra-secure ROADM-based network. For several years, ADVA has worked closely with Toshiba and the Quantum Communications Hub to engineer the groundbreaking data protection system.

The ADVA FSP 3000’s open interface was developed to comply with early drafts of the new ETSI quantum-safe cryptography standard currently being developed by an ISG headed by Toshiba. This enables the platform to interoperate with external systems and is crucial to the viability of the new QKD solution as it allows the ADVA FSP 3000 to securely and robustly accept keys. What’s more, ADVA’s WDM platform is able to utilize the same fiber for sending high-speed encrypted data as well as for distributing (or generating) quantum keys. QKD is widely predicted to be fundamental to the future of transport network security, especially for finance and government network applications. Distributing encryption keys by transmitting quantum states guarantees the secrecy of data as any attempt to intercept traffic disturbs photons, introducing coding errors and alerting network operators. This makes QKD the ultimate defense against man-in-the-middle attacks.

“As part of the UK National Quantum Technologies Programme in the Quantum Communications Hub, we’re bringing together a wide range of universities, public sector bodies and private companies in a unique collaboration. Our shared goal is realizing the potential of QKD technologies to deliver secure communications. Now, alongside key partners such as ADVA, we’ve reached the stage where QKD-based security is ready for live traffic,” said Tim Spiller, York University and director of the Quantum Communications Hub.

“This launch is a genuine milestone for data protection. By working with Toshiba and the Quantum Communications Hub to advance QKD, we’re ushering in a new age of robust security. This technology will provide peace of mind to businesses most at risk from cyberattacks both now and in the future. They and their customers can have confidence that their data will be shielded from all threats including data harvesting for future quantum hacking,” commented Jörg-Peter Elbers, SVP, advanced technology, ADVA. “In recent years, our encryption technology has earned a formidable reputation for protecting service provider and enterprise networks while ensuring highest capacity, lowest latency and maximum scalability. Our ConnectGuard™ suite offers the strongest protection possible at Layers 1, 2, 3 and 4. Using our FSP 3000 to enable QKD protection ensures our technology will remain at the forefront of secure data transport, even in the post-quantum era.”

“Developing quantum cryptography in fiber optic networks has long been a focus for our team. Over the years, we’ve taken it from PoCs in the lab to real-world demonstrations and we were the first company to achieve a transfer rate of more than 1Mbit/s for quantum communication. Now, through close collaboration with ADVA and the Quantum Communications Hub, we’ve created a fully operational transport network secured by QKD and ready to carry live data,” said Andrew Shields, assistant managing director, Toshiba Research Europe Limited, Cambridge Research Lab. “At a time of increasingly frequent and severe cyberattacks, this technology will prove vital to enterprises looking to fortify their data security, particularly those in the financial sector. Not only does it offer a new level of protection against intrusion on fiber optic networks, but it also safeguards against the upcoming threat of hacking in a post-quantum world.”

Tuesday, October 10, 2017

Intel builds 17-qubit superconducting quantum chip

Intel announced a major advance in quantum computing: the delivery of a 17-qubit superconducting test chip for quantum computing to QuTech, Intel’s quantum research partner in the Netherlands.

Intel developed the chip using a mnew architecture allowing improved reliability, thermal performance and reduced radio frequency (RF) interference between qubits.
The design leverages a scalable interconnect scheme that allows for 10 to 100 times more signals into and out of the chip as compared to wirebonded chips.

Intel said the successful fabrication of a quantum computing chip underscores the importance of material science and semiconductor manufacturing in realizing the promise of quantum computing.

“Our quantum research has progressed to the point where our partner QuTech is simulating quantum algorithm workloads, and Intel is fabricating new qubit test chips on a regular basis in our leading-edge manufacturing facilities,” said Dr. Michael Mayberry, corporate vice president and managing director of Intel Labs. “Intel’s expertise in fabrication, control electronics and architecture sets us apart and will serve us well as we venture into new computing paradigms, from neuromorphic to quantum computing.”






Sunday, September 17, 2017

Toshiba's Cambridge Research Lab Sets Quantum Encryption record

Quantum cyptography is postulated to be unbreakable. However, the quantum key must be held by the receiving party for the encrypted message to be deciphered. Until now, the speed at which a quantum key can be distributed has been limited to 1.9 Mbps.

Toshiba Research Europe Limited’s Cambridge Research Laboratory in the UK has just announced a new data distribution speed record of 13.7 Mbps - seven times the previous record, which was also achieved by Toshiba last year. The transmission spanned 10km over an optical fiber.

The details of the new device will be announced at the QCrypt 2017 conference, which will be held at the University of Cambridge from September 18-22.

Toshiba says it is already applying quantum encrption to secure genomic data in Japan.

Wednesday, August 23, 2017

IEEE P7130 to define Quantum Computing nomenclature

A new IEEE P7130—Standard for Quantum Computing Definitions project aims to establish a general nomenclature for Quantum Computing to standardize communication with related hardware and software projects.

Specifically, IEEE P7130 will define terms related to the physics of quantum computing including quantum tunneling, super position, quantum entanglement, as well as other related terms and terminology that will be updated as technological advances are made.

"While Quantum Computing is poised for significant growth and advancement, the emergent industry is currently fragmented and lacks a common communications framework,” said Whurley (William Hurley), chair, IEEE Quantum Computing Working Group. “IEEE P7130 marks an important milestone in the development of Quantum Computing by building consensus on a nomenclature that will bring the benefits of standardization, reduce confusion, and foster a more broadly accepted understanding for all stakeholders involved in advancing technology and solutions in the space.”

"IBM is part of quantum information's history, since its foundation more than 30 years ago. And we've been championing important terms, metrics, and scientific methods ever since," said Jerry Chow, manager, Experimental Quantum Computing, IBM Research and IEEE P7130 working group participant. "This standards project will help anyone from students to seasoned quantum scientists nucleate around a common language, while keeping up with the field's rapid pace of change, and further accelerate pioneering experiments and explorations in quantum computing."

"1QBit works with a variety of classical, quantum and otherwise non-standard processors, which necessitates communication between multiple external teams, across a wide range of industries, discussing many different types of computing systems,” said Andrew Fursman, CEO 1Qbit and IEEE P7130 working group participant. “IEEE P7130 "Standard for Quantum Computing Definitions" provides a valuable service to 1QBit, our partners in quantum computing, and the many industries with which we intersect."

“Confusions exist on what quantum computing or a quantum computer means,” added Professor Hidetoshi Nishimori of the Tokyo Institute of Technology and IEEE P7130 working group participant. “This partly originates in the existence of a few different models of quantum computing. It is urgently necessary to define each key word.”

https://standards.ieee.org/develop/wg/QCWG.html

Thursday, June 1, 2017

AT&T Foundry and Caltech plan Alliance for Quantum Technologies

The AT&T Foundry innovation centre in Palo Alto, California announced that it is teaming with the California Institute of Technology to form the Alliance for Quantum Technologies (AQT), with the aims of bringing together industry, government and academia to accelerate the development of quantum technology and to address practical applications.

The collaboration will also establish a research and development program named INQNET (INtelligent Quantum NEtworks and Technologies), which will focus on meeting demand for capacity and security in communications leveraging advanced quantum networking technologies.

Under the new initiative, AT&T and Caltech, through AQT and INQNET, are seeking to create the model for technology development between academic institutions, industry and national laboratories. One of the first demonstrations of intelligent and quantum network technologies will involve quantum entanglement distribution and benchmarking and validation studies utilising commercial fibre provided by AT&T.

AT&T noted that quantum networking is expected to enable a new era of super-fast, secure networking, and through the AT&T Foundry it will support testing of relevant technologies for commercial applications.

AT&T explained that quantum computers will be unlike current systems, being effectively complex physics experiments employing cryogenics for cooling, lasers and other solid-state, electronic, optical and atomic devices. As a result, transitioning quantum computing from the R&D lab into the real world for practical applications will mean solving numerous technical and engineering challenges.

The science behind quantum computing is complex, extending across disciplines such as physics, engineering, computer science and applied mathematics, with the fundamental concept involving the application of the laws of quantum mechanics to processing and distributing information.


Such quantum computing systems are expected to provide exponentially greater computing power, while quantum networking entails linking quantum computers and devices together to create faster and more secure networks with capabilities beyond what is possible using conventional processors.


Tuesday, March 28, 2017

Rigetti Computing Targets Quantum Computing in the Cloud

Rigetti Computing, a start-up based in Berkeley, California, announced $64 million in Series A and B funding for its efforts in quantum computing.

Rigetti, which was founded by Chad Rigetti in 2013, is building a cloud quantum computing platform for artificial intelligence and computational chemistry. It recently opened up private beta testing of its API for quantum computing in the cloud.

The Series A round of $24 million was led by Andreessen Horowitz. The Series B round of $40 million was led by Vy Capital, followed by Andreessen Horowitz. Major investors in both rounds include Y Combinator's Continuity Fund, Data Collective, FF Science, AME Cloud Ventures, Morado Ventures, and WTI.

"Quantum computing will enable people to tackle a whole new set of problems that were previously unsolvable," said Chad Rigetti, founder and chief executive officer of Rigetti Computing. "This is the next generation of advanced computing technology. The potential to make a positive impact on humanity is enormous."

http://rigetti.com/

Monday, March 6, 2017

IBM Plans Quantum Capability for the Cloud

IBM is launching an initiative to build commercially available universal quantum computing systems that would be be delivered via the IBM Cloud platform.

As a first step, the company is releasing an API for the IBM Quantum Experience that enables developers and programmers to begin building interfaces between its existing five quantum bit (qubit) cloud-based quantum computer and classical computers, without needing a deep background in quantum physics. Later this year, IBM plans to release a full SDK (Software Development Kit) on the IBM Quantum Experience for users to build simple quantum applications and software programs.

“Classical computers are extraordinarily powerful and will continue to advance and underpin everything we do in business and society. But there are many problems that will never be penetrated by a classical computer. To create knowledge from much greater depths of complexity, we need a quantum computer,” said Tom Rosamilia, senior vice president of IBM Systems. “We envision IBM Q systems working in concert with our portfolio of classical high-performance systems to address problems that are currently unsolvable, but hold tremendous untapped value.”

https://www-03.ibm.com/press/us/en/pressrelease/51740.wss


Monday, June 27, 2016

Quantum Random Number Generators for Better Encryption

Quantum random number generators could become the building blocks for effective encryption, according to the Cloud Security Alliance's Quantum-Safe Security (QSS) Working Group.

A newly published whitepaper titled Quantum Random Number Generators looks at leveraging quantum mechanics in the real of cyber security as an improvement over today's software or hardware-based random number generators.

https://downloads.cloudsecurityalliance.org/assets/research/quantum-safe-security/quantum-random-number-generators.pdf

Wednesday, May 4, 2016

IBM Adds Quantum Processing to its Cloud Portfolio

by James E. Carroll

IBM is adding the first quantum computing service to its publically accessible cloud.

The new service runs on IBM’s quantum processor located at the company's T. J. Watson Research Center in Yorktown, NY. The quantum processor is composed of five superconducting qubits.

IBM said its quantum computing platform has the potential to solve certain problems that are impossible to solve on today’s supercomputers. IBM envisions medium-sized quantum processors of 50-100 qubits to be possible in the next decade, which would far surpass TOP500 supercomputers for certain functions.

“Quantum computers are very different from today’s computers, not only in what they look like and are made of, but more importantly in what they can do. Quantum computing is becoming a reality and it will extend computation far beyond what is imaginable with today’s computers,” said Arvind Krishna, senior vice president and director, IBM Research. “This moment represents the birth of quantum cloud computing. By giving hands-on access to IBM’s experimental quantum systems, the IBM Quantum Experience will make it easier for researchers and the scientific community to accelerate innovations in the quantum field, and help discover new applications for this technology.”

http://www.ibm.com/quantumcomputing

IBM Wins U.S. Research Grant for Quantum Computing

The U.S. Intelligence Advanced Research Projects Activity (IARPA) program has award a multiyear research grant to IBM to advance the building blocks for a universal quantum computer.

The award is funded under the Logical Qubits (LogiQ) program of IARPA led by Dr. David Moehring. The LogiQ Program seeks to overcome the limitations of current quantum systems by building a logical qubit from a number of imperfect physical qubits.

IBM said its research team will continue to pursue the leading approach for building a universal quantum computer by using superconducting qubits. By encoding the superconducting qubits into a logical qubit, one should then be able to perform true quantum computation. These logical qubit designs will be foundational to future, more complex quantum computing systems.

“We are at a turning point where quantum computing is moving beyond theory and experimentation to include engineering and applications,” said Arvind Krishna, senior vice president and director, IBM Research. “Quantum computing promises to deliver exponentially more speed and power not achievable by today’s most powerful computers with the potential to impact business needs on a global scale. Investments and collaboration by government, industry and academia such as this IARPA program are necessary to help overcome some of the challenges towards building a universal quantum computer.”

http://www.ibm.com


IBM Announces Two Breakthroughs for Quantum Computing

Researchers at IBM have demonstrated for the first time the ability to detect and measure the two types of quantum errors (bit-flip and phase-flip) that will occur in any real quantum computer. The researchers have also shown a new, square quantum bit circuit design that could scale to larger dimensions.

“Quantum computing could be potentially transformative, enabling us to solve problems that are impossible or impractical to solve today," said Arvind Krishna, senior vice president and director of IBM Research. “While quantum computers have traditionally been explored for cryptography, one area we find very compelling is the potential for practical quantum systems to solve problems in physics and quantum chemistry that are unsolvable today. This could have enormous potential in materials or drug design, opening up a new realm of applications.”

The research is published in the April 29 issue of the journal Nature Communications (DOI: 10.1038/ncomms7979).

http://www-03.ibm.com/press/us/en/pressrelease/46725.wss

Friday, April 22, 2016

NTT Tackles Artificial Spin for Photonic Computation

Researchers at NTT and and Osaka University announced an important step toward photonic computation by developing a large-scale artificial spin network based on photonics technologies. The development targets a fundamental component for the coherent Ising machine (CIM), which utilizes interacting artificial spins realized with optical parametric oscillators (OPO) for computation of combinatorial optimization problems.

The researchers generated more than 10,000 time-multiplexed OPOs using an optical fiber cavity as long as 1 km.

The OPOs can be used as artificial spins for a large-scale CIM to solve combinatorial optimization problems in the real world. The research was published in the UK science journal “Nature Photonics” on April 18, 2006.

http://www.ntt.co.jp/news2016/1604e/160418a.html

Monday, March 28, 2016

NTT Researchers Manipulate the Color of Single Photons

Researchers at NTT demonstrated the wavelength conversion of a single-photon wave packet required for quantum information-communication technologies. The company said the technique enables it deterministically change the color and shape of a single-photon wave packet in a lossless manner.

NTT lossless scheme utilized an all-optical effect called cross-phase modulation (XPM) to control the phase of light (signal pulses) via a change in the refractive index of a medium induced by another light (control pulses).

"When the refractive index varies dynamically, frequency modulation is induced to the signal field as a result of a signal’s non-uniform phase shift. By using single photons as the signal field, we can modulate the wavelength of the photons (Fig. 1). Since XPM always occurs regardless of the intensity of the control field, the wavelength conversion occurs without a photon loss. This is in contrast to the conventional all-optical wavelength conversion scheme for photons, namely nonlinear frequency mixings, where an intense control field is required for high conversion efficiency."

http://www.ntt.co.jp/news2016/1603e/160326a.html

Researchers at NTT Envision Quantum Repeaters in Future Photonic Networks


Researchers at Nippon Telegraph and Telephone Corporation (NTT) and the University of Toronto are proposing all-photonic quantum repeaters for long-distance quantum communication.  If achieved, such devices would disprove the necessity of matter quantum memories in long distance quantum communications, which is seen by many as the ultimate future of optical communications.

In a paper published this week by the journal Nature Communications, the researchers said their all-photonic scheme paves a completely new route towards long-distance quantum communication based only on optical devices. Compared to matter quantum memories, this approach eliminates the quantum interface between matter and photons.  The design is based on existing optical technology, such as linear optical elements, single-photon sources, photon detectors and an active feed-forward technique.

http://www.ntt.co.jp/news2015/1504e/150415a.html

Tuesday, December 8, 2015

IBM Wins U.S. Research Grant for Quantum Computing

The U.S. Intelligence Advanced Research Projects Activity (IARPA) program has award a multiyear research grant to IBM to advance the building blocks for a universal quantum computer.

The award is funded under the Logical Qubits (LogiQ) program of IARPA led by Dr. David Moehring. The LogiQ Program seeks to overcome the limitations of current quantum systems by building a logical qubit from a number of imperfect physical qubits.

IBM said its research team will continue to pursue the leading approach for building a universal quantum computer by using superconducting qubits. By encoding the superconducting qubits into a logical qubit, one should then be able to perform true quantum computation. These logical qubit designs will be foundational to future, more complex quantum computing systems.

“We are at a turning point where quantum computing is moving beyond theory and experimentation to include engineering and applications,” said Arvind Krishna, senior vice president and director, IBM Research. “Quantum computing promises to deliver exponentially more speed and power not achievable by today’s most powerful computers with the potential to impact business needs on a global scale. Investments and collaboration by government, industry and academia such as this IARPA program are necessary to help overcome some of the challenges towards building a universal quantum computer.”

http://www.ibm.com


IBM Announces Two Breakthroughs for Quantum Computing

Researchers at IBM have demonstrated for the first time the ability to detect and measure the two types of quantum errors (bit-flip and phase-flip) that will occur in any real quantum computer. The researchers have also shown a new, square quantum bit circuit design that could scale to larger dimensions.

“Quantum computing could be potentially transformative, enabling us to solve problems that are impossible or impractical to solve today," said Arvind Krishna, senior vice president and director of IBM Research. “While quantum computers have traditionally been explored for cryptography, one area we find very compelling is the potential for practical quantum systems to solve problems in physics and quantum chemistry that are unsolvable today. This could have enormous potential in materials or drug design, opening up a new realm of applications.”

The research is published in the April 29 issue of the journal Nature Communications (DOI: 10.1038/ncomms7979).

http://www-03.ibm.com/press/us/en/pressrelease/46725.wss

Saturday, October 10, 2015

Australian Researchers Build Quantum Logic Gate in Silicon

Researchers at the University of New South Wales in Australia have built a quantum logic gate in silicon for the first time -- a major step toward quantum computers.

“We’ve demonstrated a two-qubit logic gate – the central building block of a quantum computer – and, significantly, done it in silicon. Because we use essentially the same device technology as existing computer chips, we believe it will be much easier to manufacture a full-scale processor chip than for any of the leading designs, which rely on more exotic technologies," stated Andrew Dzurak, Scientia Professor and Director of the Australian National Fabrication Facility at UNSW.

“This makes the building of a quantum computer much more feasible, since it is based on the same manufacturing technology as today’s computer industry,” he added.

Professor Kohei M. Itoh from Keio University in Japan provided specialised silicon wafers for the project.

http://newsroom.unsw.edu.au/news/science-tech/crucial-hurdle-overcome-quantum-computing

NIST Researchers Teleport Quantum State over 100km of Fiber


Researchers from the National Institute of Standards and Technology (NIST) and NTT have transferred quantum information carried in light particles over 100 km of optical fiber, four times farther than the previous record. The breakthrough could lead to quantum repeaters, opening the door to quantum communications over long distances of fiber. Previously, quantum state has been teleported over free space, but transfers over optical have been limited...

NTT and University of Tokyo Cite Progress in Quantum Cryptography


Nippon Telegraph and Telephone(NTT) and The University of Tokyo reported progress in developing a quantum cryptography scheme that can assure security without monitoring the error rate of photon transmission. In an article in the UK science journal “Nature Photonics”, the researchers describe a quantum key distribution (QKD) experiment based on a novel QKD scheme called the round-robin differential phase shift (RRDPS) protocol. NTT said the experiment...

Intel Invests in QuTech for Quantum Computing


Intel will invest US$50 million and provide significant engineering resources to Delft University of Technology and TNO, the Dutch Organisation for Applied Research, to accelerate advancements in quantum computing. Intel said its goal is to extend the university's physics expertise and diverse quantum computing research efforts by contributing advanced manufacturing, electronics and architectural expertise. "A fully functioning quantum computer...


Thursday, September 24, 2015

NIST Researchers Teleport Quantum State over 100km of Fiber

Researchers from the National Institute of Standards and Technology (NIST) and NTT have transferred quantum information carried in light particles over 100 km of optical fiber, four times farther than the previous record. The breakthrough could lead to quantum repeaters, opening the door to quantum communications over long distances of fiber.

Previously, quantum state has been teleported over free space, but transfers over optical have been limited because fewer than 1% of photons could be detected through 100km of fiber.

http://www.nist.gov/pml/how-to-teleport-quantum-information.cfm





Researchers at NTT Envision Quantum Repeaters in Future Photonic Networks


Researchers at Nippon Telegraph and Telephone Corporation (NTT) and the University of Toronto are proposing all-photonic quantum repeaters for long-distance quantum communication.  If achieved, such devices would disprove the necessity of matter quantum memories in long distance quantum communications, which is seen by many as the ultimate future of optical communications.

In a paper published this week by the journal Nature Communications, the researchers said their all-photonic scheme paves a completely new route towards long-distance quantum communication based only on optical devices. Compared to matter quantum memories, this approach eliminates the quantum interface between matter and photons.  The design is based on existing optical technology, such as linear optical elements, single-photon sources, photon detectors and an active feed-forward technique.

http://www.ntt.co.jp/news2015/1504e/150415a.html

Sunday, September 20, 2015

NTT and University of Tokyo Cite Progress in Quantum Cryptography

Nippon Telegraph and Telephone(NTT) and The University of Tokyo reported progress in developing a quantum cryptography scheme that can assure security without monitoring the error rate of photon transmission.

In an article in the UK science journal “Nature Photonics”, the researchers describe a quantum key distribution (QKD) experiment based on a novel QKD scheme called the round-robin differential phase shift (RRDPS) protocol.

NTT said the experiment is the first demonstration of QKD based on “wave function collapse”, which is distinguished from previous QKD schemes whose security is based on Heisenberg’s uncertainty principle. A major finding is that QKD that does not require error rate monitoring between the sender and receiver.  This could lead to simple and efficient quantum cryptographic systems.

http://www.ntt.co.jp/news2015/1509e/150914a.html

Researchers at NTT Envision Quantum Repeaters in Future Photonic Networks



Researchers at Nippon Telegraph and Telephone Corporation (NTT) and the University of Toronto are proposing all-photonic quantum repeaters for long-distance quantum communication.  If achieved, such devices would disprove the necessity of matter quantum memories in long distance quantum communications, which is seen by many as the ultimate future of optical communications. In a paper published this week by the journal Nature Communications,...


Advancements in Semiconductor Quantum Dots with Single-atom Precision



Nippon Telegraph and Telephone Corp. (NTT), the Paul-Drude-Institute (PDI; Germany), and the Naval Research Laboratory (NRL: USA) have cooperatively developed a novel quantum dot (artificial atom) and used it to crate artificial molecules with single-atom precision. The achievement was achieved using a clean surface of semiconductor single crystal thin film manufactured by Molecular Beam Epitaxy (MBE) by using a low-temperature, Scanning Tunneling...


NTT Develops Long-lived Quantum Memory



NTT, in partnership with Japan's National Institute of Informatics and Osaka University, announced a new approach in the development of a long-lived quantum memory that could be used in quantum computing. The research involves a superconductor diamond quantum hybrid system in which a dark state was shown to be 150 ns, an order of magnitude longer than previous attempts to hold state. By using a gap-tunable superconducting flux qubit, the researchers...


NTT Creates Quantum Buffer in Optical Waveguide



Researchers at NTT have developed a quantum buffer on an optical waveguide that takes advantage of the "slow light effect:, where the propagation speed of a pulsed light in a special optical waveguide slows significantly compared with the speed of light in vacuum. The company said this innovation facilitates the precise synchronization of photons, thereby creating a buffer that could be used to create quantum computers.  Experiments have shown...


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