Towards a Theory of Entropy Production in the Little and Big Bang(Nuclear Physics)

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概要

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• We propose a broadly applicable formalism for the description of coarse grained entropy production in quantum mechanical processes. Our formalism is based on the Husimi transform of the quantum state, which encodes the notion that information about any quantum state is limited by the experimental resolution. We show in two analytically tractable cases (the decay of an unstable vacuum state and reheating after cosmic inflation) that the growth rate of the Wehrl entropy associated with the Husimi function approaches the classical Kolmogorov-Sinai entropy. We also discuss various possible applications of our formalism, including the production of entropy in the early stages of a relativistic heavy ion collision.

• 2009-03-25

著者

• OHNISHI Akira

  Yukawa Institute for Theoretical Physics, Kyoto University

• 大西 明

  京都大学基礎物理学研究所

• KUNIHIRO Teiji

  Department of Physics, Kyoto University

• MULLER Berndt

  Yukawa Institute for Theoretical Physics, Kyoto University

• SCHAFER Andreas

  Yukawa Institute for Theoretical Physics, Kyoto University

• Muller Berndt

  Yukawa Institute For Theoretical Physics Kyoto University:department Of Physics Duke University

• Schafer Andreas

  Yukawa Institute For Theoretical Physics Kyoto University:institut Fur Theoretische Physik Universit

• OHNISHI Akira

  Division of Physics, Graduate School of Science, Hokkaido University

• Kunihiro Teiji

  Department Of Physics Kyoto University

• Ohnishi Akira

  Yukawa Institute For Theoretical Physics Kyoto University

• Kunihiro Teiji

  Department Of Natural Sciences Ryukoku University

• MULLER Berndt

  Yukawa Institute for Theoretical Physics, Kyoto University:Department of Physics, Duke University

• SCHAFER Andreas

  Physics Department, University of Regensburg

• SCHAFER Andreas

  Yukawa Institute for Theoretical Physics, Kyoto University:Institut fur Theoretische Physik, Universitat Regensburg

• OHNISHI Akira

  Yukawa Institute for Theoretical Physics, Kyoto University:Department of Physics, Faculty of Science, Hokkaido University

• KUNIHIRO Teiji

  Department of National Sciences, Ryukoku University

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