Tag Archives: Physical Review Letters

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New method knocks out stubborn electron problem

July 5, 2012 – 7:01 am

New method knocks out stubborn electron problem - A newly published article in Physical Review Letters eliminates one of the top unsolved theoretical problems in chemical physics as ranked by the National Research Council in 1995. Scientists now can more accurately predict the dynamic behavior of electrons in atoms and molecules in chemical reactions that govern a wide range of phenomena, including the fuel efficiency of combustion engines and the depletion of the atmospheric ozone. Reference: "Structure of Fermionic Density Matrices: Complete N-representability Conditions," Physical Review Letters, 2012; 108 (26) DOI: (10.1103/PhysRevLett.108.263002)

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Theorem unifies superfluids and other weird materials

June 12, 2012 – 10:00 pm

Theorem unifies superfluids and other weird materials - University of California, Berkeley, physicist Hitoshi Murayama and graduate student Haruki Watanabe have discovered a commonality among these materials that can be used to predict or even design new materials that will exhibit such unusual behavior. The theory, published online by Physical Review Letters, applies equally to magnets, crystals, neutron stars, and cosmic strings.

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Physicists close in on a rare particle-decay process

June 7, 2012 – 2:00 am

Physicists close in on a rare particle-decay process - In the biggest result of its kind in more than ten years, physicists have made the most sensitive measurements yet in a decades-long hunt for a hypothetical and rare process involving the radioactive decay of atomic nuclei. If discovered, the researchers say, this process could have profound implications for how scientists understand the fundamental laws of physics and help solve some of the universe's biggest mysteries. Reference: Search for Neutrinoless Double-Beta Decay in 136Xe with EXO-200, Physical Review Letters, 2012 arXiv:1205.5608v1

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