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quantum computing News
Perovskite Quantum Dots Deliver Coherent Single-Photon Emission
CAMBRIDGE, Mass., Feb. 25, 2019 — In an advancement toward a single photon source for use in quantum computing and communications devices, researchers at the Massachusetts Institute of Technology (MIT) and ETH Zurich showed that individual perovskite quantum dots could be used as a source for individual photons with precisely known and consistent properties, including wavelength. Each photon produced would be indistinguishable from the others, allowing a pair of photons to interact in a phenomenon known as quantum interference.
Strain Engineering Enables Precise Placement of Single-Photon Emitters
ROME, N.Y., and WASHINGTON, Feb. 20, 2019 — Scientists at the U.S. Naval Research Laboratory (NRL) and the Air Force Research Laboratory (AFRL) have developed a way to directly write quantum light sources, which emit a single photon of light at a time, into monolayer semiconductors such as...
System Uses QD Array to Tackle Scalability Issues in Quantum Computing
WAKO, Japan, Jan. 2, 2019 — A research team led by the RIKEN Center for Emergent Matter Science (CEMS) has constructed a hybrid device for quantum computing, made from two different types of qubits. According to the team, the hybrid system benefits from the different...
Quantum Applications Jump Forward with Photonics
Nov 26, 2018 — Quantum technologies encompass diverse fields that include computing, cryptography, and sensing. Quantum theory, first presented by Max Planck at the turn of the 19th century and followed by the theoretical foundation developed by Albert Einstein,...
European Initiative Fosters Quantum Technologies
VIENNA, Oct. 29, 2018 — The European Commission announced the first winners of the Quantum Flagship today. The €1 billion ($1.1 billion) funding initiative will support large-scale and long-term research and innovation projects directed at transferring quantum physics...
SWAP Gate Could Help in Scaling Quantum Computers
REHOVOT, Israel, Sept. 5, 2018 — The quantum optics lab at the Weizmann Institute of Science has created a logic gate in which a photon and an atom can automatically exchange the information they carry. This advance could help in scaling up quantum computers for practical use....
Researchers Use Photovoltage Measurements to Observe Quantum Spin Effects
SINGAPORE, Aug. 15, 2018 — Scientists have observed specific spin phenomena in topological insulators and metals using a scanning photovoltage microscope. The new, practical way to examine quantum behavior of materials could yield information useful for building future...
ColdQuanta Closes $6.75M Equity Investment in Quantum Technologies
BOULDER, Colo., Aug. 7, 2018 — ColdQuanta, a developer of laser-cooled and ultracold atom-enabled quantum technologies, has received $6.75 million in seed financing from investors led by Maverick Ventures, with participation from Global Frontier Investments. The funding will be...
Caltech Researchers Develop On-Chip Nanoscale Optical Quantum Memory
PASADENA, Calif., Oct. 4, 2017 — A computer chip with nanoscale optical quantum memory has been developed that is analogous to a traditional memory chip in a computer. An international team led by engineers at Caltech took advantage of the peculiar features of quantum mechanics,...
Ultrafast Optics Faces Challenges Outside of Research Labs
Jul 10, 2017 — Ultrafast optics is currently a scientifically dominated area with a lot of dynamics in both research and development. Often, complex setups make it challenging to create compact devices that can be employed for applications outside of the...
Purdue and Microsoft to Collaborate on Quantum Computer
WEST LAFAYETTE, Ind., June 9, 2017 — Purdue University and Microsoft Corp. have signed a five-year agreement to develop a useable quantum computer. Purdue is one of four international universities in the collaboration. Michael Manfra, Purdue University's Bill and Dee O'Brien Chair...
“Virtual” Interferometers Could Minimize Size of Optical Processing Circuitry
MELBOURNE, Australia, April 24, 2017 — A novel technique dubbed “measurement-based linear optics” could enable miniaturization of the optical processing circuitry required for quantum computers by using virtual interferometers instead of large-scale physical ones. According...
Holographic Atomic Memory Produces Photons On Demand
WARSAW, Poland, Feb. 10, 2017 — A device that is able to generate single photons on demand in groups of several dozen or more could help scientists overcome one of the fundamental obstacles facing the construction of quantum computers. Physicists from the Faculty of Physics at the...
Fiber Optics Help Improve the Performance of Single-Photon Sources
BATH, England, Nov. 29, 2016 — Information can be imprinted on single photons that can in turn, perform calculations and transmit messages. Creating the “individual” photon to do that is a complicated and challenging process though. With the help of fiber optics and...
Photon Source Lighting the Way for Quantum Computing
CORK CITY, Ireland, Nov. 18, 2016 — As today's computers show fundamental limitations in calculation capacity for future use, a scalable, electrically driven photon source could make quantum computing a reality sooner than expected.
Photon Pairs Offer Alternate Approach to Quantum Computing
ESPOO, Finland, Sept. 1, 2016 — Microwave signals comprised of correlated photons could be used to code information for quantum computing and may offer an alternative to use of optical systems to build quantum computers. Researchers at Aalto University chilled a microwave...
Optalysys Receives $350K DARPA Grant for Optical Computing
CAMBRIDGE, England, April 27, 2016 — Optalsys Ltd. said it has been awarded a $350,000 grant from DARPA to advance and apply optical coprocessing technology for the solving of complex mathematical equations relevant to large-scale scientific and engineering simulations, such as weather...
Manfra Chosen to Lead Microsoft’s Station Q Purdue
WEST LAFAYETTE, Ind., April 22, 2016 — Professor Michael Manfra at Purdue University has been selected to lead Station Q Purdue, an elite team assembled by Microsoft’s Station Q to pursue quantum computing. Mathematician and Fields Medal winner Michael Freedman leads Microsoft...
Laser Light Controls Qubits for Robust Quantum Info Processing
CHICAGO, Feb. 25, 2016 — A laser-based technique for controlling qubit vector direction could advance practical quantum technology. Researchers at the University of Chicago's Institute for Molecular Engineering and the University of Konstanz have demonstrated the ability to...
Photon-Based Heat Transport May Advance Quantum Computing
AALTO, Finland, Feb. 11, 2016 — A thermal-transport method that uses photons as carriers has been demonstrated over 1-m distances. The fundamental advance in heat conduction could drive the development of quantum computers. Artistic rendering of quantum-limited heat conduction of...
Nanotweezers Increase Velocity of Particle Transport
WEST LAFAYETTE, Ind., Nov. 12, 2015 — Nanotweezers that exploit plasmonics, heat and an electrical field flow overcome previous limitations caused by weak convection properties. The nanotweezer system uses a nanoantenna to concentrate and absorb light, creating plasmonic hotspots, which...
Purdue University to Launch Quantum Photonics R&D Center
WEST LAFAYETTE, Ind., Oct. 6, 2015 — Purdue University is preparing to launch a new science and technology center focused on quantum photonics. Potential applications for technology to be developed at the Purdue Quantum Center include advanced quantum computers and Internet technology;...
Theory Describes 'Molecules' of Light
COLLEGE PARK, Md., Sept. 16, 2015 — New theoretical work shows how two photons can be bound together in much the same way that atoms form molecules. If demonstrated experimentally, the phenomenon could be exploited to enhance photon detectors and enable quantum computing. "Lots of...
Chip Simplifies Quantum Optics Experiments
BRISTOL, England, Aug. 14, 2015 — JFL Chip Simplifies Quantum Optics Experiments BRISTOL, England, Aug. 14, 2015 — A chip that can process photons in an infinite number of ways could speed up development of quantum computing. Researchers say the device is a step quantum...
Entangled Photons Emitted from Silicon Microring
PAVIA, Italy, Jan. 26, 2015 — Microring resonators could become a chip-scale source of entangled photons crucial to quantum computing and encryption. Such resonators are known to be efficient sources of photon pairs, but a 20-µm silicon resonator developed at the...
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