News tagged with quantum systems
Related topics: quantum computing , physical review letters , quantum information , quantum state
Using quantum smoothing for optical phase estimation
(PhysOrg.com) -- "There are many situations where we need to measure the classical properties of a quantum system," Elanor Huntington tells PhysOrg.com. "Optical phase estimation is one of these techniques, and it is cen ...
Mar 11, 2010 |
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Scientists find quantum mechanics at work in photosynthesis
(PhysOrg.com) -- A team of University of Toronto chemists have made a major contribution to the emerging field of quantum biology, observing quantum mechanics at work in photosynthesis in marine algae.
Feb 03, 2010 |
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Artificial magnetic fields for light could illuminate correlated quantum systems
(PhysOrg.com) -- In general, the field of many-body physics involves the interactions and collective behavior of large numbers of particles. Scientists have made significant progress in exploring this field, ...
Feb 03, 2010 |
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Nonlinear thinker: Making sense of previously insoluble problems
If an airplane is cruising along and raises the flaps on its wings a degree or two, it will tilt upward. If it raises the flaps twice as much, it will tilt upward about twice as much. But if it tilts upward ...
Jan 29, 2010 |
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Exotic symmetry seen in ultracold electrons
(PhysOrg.com) -- An exotic type of symmetry - suggested by string theory and theories of high-energy particle physics, and also conjectured for electrons in solids under certain conditions - has been observed ...
Jan 18, 2010 |
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Google Collaborates with D-Wave on Possible Quantum Image Search
(PhysOrg.com) -- Always on the cutting edge of new computing technologies, Google has recently announced that it is investigating the use of quantum computing schemes to achieve faster image recognition rates. ...
Dec 15, 2009 |
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Physics rules network dynamics
(PhysOrg.com) -- When it comes to the workings of the Web, the brain, or a social network, physics finds universal truths.
Dec 11, 2009 |
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Physicist Jack Harris Is Honored by DARPA as One of Nation's 'Rising Stars'
(PhysOrg.com) -- Jack Harris, an associate professor of physics, has received one of this year's Young Faculty Awards (YFA) from the Defense Advanced Research Projects Agency (DARPA). He is one of 33 "rising stars" across ...
Dec 04, 2009 |
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UCSB physicists move one step closer to quantum computing
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 ...
Nov 20, 2009 |
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Field experiment on a robust hierarchical metropolitan quantum cryptography network
Key Laboratory of Quantum Information (CAS), University of Science and Technology of China has recently demonstrated a metropolitan Quantum Cryptography Network (QCN) for Government Administration in Wuhu, China. The project ...
Oct 16, 2009 |
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New Law of Physics Could Explain Quantum Mysteries
(PhysOrg.com) -- Since the early days of quantum mechanics, scientists have been trying to understand the many strange implications of the theory: superpositions, wave-particle duality, and the observer’s ...
Aug 17, 2009 |
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Effects of 'strong coupling' observed for the first time between light and a micromechanical object
(PhysOrg.com) -- Physicists at the Institute for Quantum Optics and Quantum Information (IQOQI) in Vienna and Innsbruck, Austria, have created an interaction between light and a micromechanical resonator that ...
Aug 06, 2009 |
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Working out a timescale for quantum operations
One of the issues affecting quantum systems is coherence. Understanding coherence and how it breaks down (decoherence) is one of the keys to putting together a powerful quantum computer. And, because wires made from metal ...
Jun 17, 2009 |
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Creating the astro-comb to locate Earth-like planets
Researchers at the Harvard-Smithsonian Center for Astrophysics in Cambridge, Mass. have created an "astro-comb" to help astronomers detect lighter planets, more like Earth, around distant stars. The Harvard group will present ...
May 07, 2009 |
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Quantum cat's 'whiskers' offer advanced sensors
(PhysOrg.com) -- A team led by Oxford University scientists has turned one of the key problems with quantum entangled systems - that they are easily ‘disturbed’ by their environment - into an advantage which ...
Apr 24, 2009 |
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