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In quantum channels, zero plus zero can equal non-zero
Oct 06, 2008 |
4.6 / 5 (62) |
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(PhysOrg.com) -- Physicists have discovered a strange characteristic of quantum communication channels. If two quantum channels each have a transmission capacity of zero, they may still have a nonzero capacity ...
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, ...
Podcast: Reproducing a Black Hole in the Laboratory, and other Quantum Theories
Aug 27, 2009 |
5 / 5 (2) |
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In a recent study, Professor of Physics and Astronomy Miles Blencowe and his colleagues proposed a new way of creating a reproduction black hole in the laboratory.
A police woman fights quantum hacking and cracking
Technology / Computer Sciences
Jul 30, 2009 |
3.3 / 5 (9) |
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The first desktop computers changed the way we managed data forever. Three decades after their introduction, we rely on them to manage our time, social life and finances -- and to keep this information safe ...
Researchers Design Triple Quantum Dot for Quantum Information Applications
Nov 30, 2009 |
4.7 / 5 (18) |
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(PhysOrg.com) -- While quantum dots have existed since the 1980s, only in the past decade have physicists successfully created lateral few-electron single quantum dots. These quantum dots enable physicists ...
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 ...
Researchers Demonstrate 'Quantum Data Buffering' Scheme
Feb 12, 2009 |
4.6 / 5 (7) |
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(PhysOrg.com) -- Pushing the envelope of Albert Einstein's "spooky action at a distance," known as entanglement, researchers at the Joint Quantum Institute (JQI) of the Commerce Department's ...
Straightening messy correlations with a quantum comb
Nov 23, 2009 |
4.8 / 5 (10) |
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Quantum computing promises ultra-fast communication, computation and more powerful ways to encrypt sensitive information. But trying to use quantum states as carriers of information is an extremely delicate ...
Physicists make discovery in quantum mechanics
Sep 23, 2009 |
4.3 / 5 (27) |
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(Santa Barbara, Calif.) -- Physicists at UC Santa Barbara have made an important advance in quantum mechanics using a superconducting electrical circuit. The finding is reported in this week's issue of the journal Nature.
UCSB physicists move one step closer to quantum computing
Nov 20, 2009 |
5 / 5 (9) |
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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 ...
Researchers untangle quantum quirk
Jun 11, 2008 |
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Quantum computing has been hailed as the next leap forward for computers, promising to catapult memory capacity and processing speeds well beyond current limits. Several challenging problems need to be cracked, however, before ...
'Superdense' coding gets denser
Mar 24, 2008 |
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The record for the most amount of information sent by a single photon has been broken by researchers at the University of Illinois. Using the direction of “wiggling” and “twisting” of a pair of hyper-entangled photons, they ...
Solving big problems with new quantum algorithm
Nov 09, 2009 |
4.6 / 5 (32) |
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(PhysOrg.com) -- In a recently published paper, Aram Harrow at the University of Bristol and colleagues from MIT in the United States have discovered a quantum algorithm that solves large problems much faster ...
Scientists to study diamond-based quantum information processing, communication
Apr 15, 2009 |
3.3 / 5 (4) |
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(Santa Barbara, Calif.) -- In the quest for quantum information processing, diamonds may be a physicist's best friend.
First-ever calculation performed on optical quantum computer chip
Sep 03, 2009 |
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(PhysOrg.com) -- A primitive quantum computer that uses single particles of light (photons) whizzing through a silicon chip has performed its first mathematical calculation. This is the first time a calculation ...
