News tagged with quantum key
Researchers Set New Distance Record for Quantum Key Distribution
Jul 21, 2009 |
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(PhysOrg.com) -- Quantum key distribution (QKD) could be the next commercial success of quantum physics, and a recent study has taken the field a step closer to this reality. Researchers from the University ...
Making quantum cryptography practical
Apr 30, 2009 |
4.3 / 5 (3) |
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Quantum cryptography, a completely secure means of communication, is much closer to being used practically as researchers from Toshiba and Cambridge University's Cavendish Laboratory have now developed high speed detectors ...
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'Self-correcting' gates advance quantum computing
Mar 12, 2009 |
4.6 / 5 (14) |
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(PhysOrg.com) -- Two Dartmouth researchers have found a way to develop more robust “quantum gates,” which are the elementary building blocks of quantum circuits. Quantum circuits, someday, will be used to ...
Quantum communication through synergy
Jan 19, 2009 |
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(PhysOrg.com) -- When most people think of quantum communication, they think in terms of private communication channels - the ability to send messages without a third-party deciphering them. Indeed, quantum cryptography represents ...
Scientists demonstrate all-fiber quantum logic
May 28, 2009 |
4.3 / 5 (12) |
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A team of physicists and engineers have demonstrated all-fibre quantum logic, where single photons are generated and used to perform the controlled-NOT quantum logic gate in optical fibres with high fidelity.
Secure Communication via Space
Apr 22, 2008 |
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The exchange of information between distant sources is the basis of all communications, but quantum mechanics may open up this distant exchange as never before.
Researchers unite to distribute quantum keys
Jul 02, 2009 |
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Researchers from across Europe have united to build the largest quantum key distribution network ever built. The efforts of 41 research and industrial organisations were realised as secure, quantum encrypted information ...
Single Atom Quantum Dots Bring Real Devices Closer (Video)
Jan 27, 2009 |
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(PhysOrg.com) -- Single atom quantum dots created by researchers at Canada’s National Institute for Nanotechnology and the University of Alberta make possible a new level of control over individual electrons, ...
Light touch: Controlling the behavior of quantum dots
Aug 19, 2008 |
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Researchers from the National Institute of Standards and Technology and the Joint Quantum Institute (JQI), a collaborative center of the University of Maryland and NIST, have reported a new way to fine-tune ...
UCSB physicists move one step closer to quantum computing
Nov 20, 2009 |
5 / 5 (8) |
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Physicists at UC Santa Barbara have made an important advance in electrically controlling quantum states of electrons, a step that could help in the development of quantum computing. The work is published ...
Siemens builds a lock made of light: Data transfer using quantum cryptography
Aug 01, 2008 |
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(PhysOrg.com) -- Electronic communication is becoming more secure all over the world. Siemens IT Solutions and Services, Austrian Research Centers (ARC) and Graz University of Technology have joined forces ...
Quantum technologies move a step closer with the demonstration of an 'entanglement' filter
Jan 22, 2009 |
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(PhysOrg.com) -- A team of physicists and engineers has demonstrated an optical device that filters two particles of light (or photons) based on the correlations between their polarisation that are only allowed in the seemingly ...
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