News tagged with correlations
A new generation of acoustic measurements
NPL scientists have made the first measurements of airborne acoustic free-field pressures using a laser technique based on photon correlation spectroscopy.
May 29, 2012 |
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Iron-based superconductors exhibit s-wave symmetry
(Phys.org) -- Condensed-matter physicists the world over are in hot pursuit of a comprehensive understanding of high-temperature superconductivity, not just for its technological benefits but for the clues ...
May 18, 2012 |
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Quantum strategy offers game-winning advantages, even without entanglement
(PhysOrg.com) -- Quantum correlations have well-known advantages in areas such as communication, computing, and cryptography, and recently physicists have discovered that they may help players competing in ...
Mar 13, 2012 |
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Proposed experiment offers new way to generate macroscopic entanglement
(PhysOrg.com) -- In the development of quantum information processing, one of the key requirements is achieving quantum entanglement. But recently, physicists have been investigating other forms of quantum correlations besides ...
Jan 05, 2012 |
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Quantum correlations -- without entanglement
(PhysOrg.com) -- Few people doubt the "quantumness" of entanglement. Quantifying the quantum correlation of entanglement is something that is relatively regular right now. However, things change a bit when it comes to quantum ...
Aug 24, 2011 |
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Simplifying the process of detecting genuine multiparticle entanglement
(PhysOrg.com) -- The ability to entangle particles is considered essential for a number of experiments and applications. While we have seen evidence for quantum entanglement, it is still difficult to detect ...
May 20, 2011 |
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Not all quantum properties are lost through interaction with the environment
(PhysOrg.com) -- One of the most well-known "rules" of quantum physics is that all quantum properties are lost due to environmental interaction. This rule, though, may not hold true in all situations. "We have discovered ...
Jun 01, 2010 |
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Quantum measurement precision approaches Heisenberg limit
(PhysOrg.com) -- In the classical world, scientists can make measurements with a degree of accuracy that is restricted only by technical limitations. At the fundamental level, however, measurement precision ...
Feb 26, 2010 |
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Can a formula predict the outcome of a soccer match?
(PhysOrg.com) -- Soccer, like most sports, is a game full of surprises and lucky or unlucky breaks. After all, if it was easy to predict the winner of a soccer match, there wouldn’t be much reason to watch ...
Mar 05, 2010 |
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Quantum guessing game reveals insight into stronger-than-quantum correlations
(PhysOrg.com) -- In information processing, physicists are often in search of ways to turn classical strategies into quantum ones, with the implication that the quantum version is somehow stronger, faster, or more secure ...
Jun 22, 2010 |
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Solving the phase problem in x-ray diffraction
(PhysOrg.com) -- Nearly 100 years ago, in 1912, a paper by Max von Laue made it possible to use x-rays to study the structure of different crystalline substances. He won a Nobel Prize in 1914 for his work, but, even so, the ...
Aug 26, 2009 |
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Researchers find a country's wealth correlates with its collective knowledge
(PhysOrg.com) -- What causes the large gap between rich and poor countries has been a long-debated question. Previous research has found some correlation between a nation’s economic prosperity and factors ...
Oct 26, 2011 |
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Post-Quantum Correlations: Exploring the Limits of Quantum Nonlocality
(PhysOrg.com) -- When it comes to nonlocal correlations, some correlations are more nonlocal than others. As the subject of study for several decades, nonlocal correlations (for example, quantum entanglement) ...
May 07, 2009 |
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Scientists Model Words as Entangled Quantum States in our Minds
(PhysOrg.com) -- When you hear the word “planet,” do you automatically think of the word’s literal definition, or of other words, such as “Earth,” “space,” “Mars,” etc.? Especially when used in sentences, ...
Feb 18, 2009 |
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Researchers Find Innate Correlations Among Different Power Law Phenomena
(PhysOrg.com) -- Studying the patterns that emerge in natural and social phenomena is a popular area of research, although usually individual phenomena are studied separately from each other. In a recent study, ...
Nov 17, 2009 |
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