Nonlocal Transport Phenomena and Various Structure Formations in Plasmas. Nonlocal Transport in Laser Implosion and Supernova Explosion.

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  • プラズマの非局所輸送現象と様々な構造形成　２．　　レーザー爆縮および超新星爆発における非局所輸送
  • レーザー爆縮および超新星爆発における非局所輸送
  • レーザーバクシュク オヨビ チョウシンセイ バクハツ ニ オケル ヒキョクショ ユソウ

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Abstract

Nonlocal transport becomes important in a variety of situations in physics. We briefly review under what conditions it appears to be important in modeling energy transport by neutral gas, neutrons, charged particles, photons, and neutrinos. In the cases of these last three, the cross-sections strongly depend upon particle energies. In such cases, nonlocal transport becomes important even when each mean free path is much shorter than the length of the change of its energy density. We mainly review the research that has been done on nonlocal electron energy transport in relation to laser-produced plasmas and the way in which precise calculation of neutrino transport changes the properties of a shock wave, which is used as a driver to explode a massive star such as a supernova, by solving Boltzmann-type equations for neutrinos and anti-neutrinos.

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