News tagged with quantum capacity
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 ...
Search results for quantum capacity
Single Atom Quantum Dots Bring Real Devices Closer (Video)
Jan 27, 2009 |
4.8 / 5 (16) |
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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, ...
A police woman fights quantum hacking and cracking
Technology / Computer Sciences
Jul 30, 2009 |
3.4 / 5 (8) |
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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 unite to distribute quantum keys
Jul 02, 2009 |
4.5 / 5 (2) |
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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 (8) |
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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 ...
UCSB physicists move one step closer to quantum computing
Nov 20, 2009 |
5 / 5 (6) |
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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 |
4 / 5 (28) |
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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 |
4.8 / 5 (36) |
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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 (3) |
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(Santa Barbara, Calif.) -- In the quest for quantum information processing, diamonds may be a physicist's best friend.
List of search results for quantum capacity
