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On the damping of an elementary excitation of the quantum system interacting with a gaussian random field

A.A. Abdumalikov and F.kh. Abullaev

Physica A: Statistical Mechanics and its Applications, 1984, vol. 123, issue 2, 625-631

Abstract: A direct stochastic perturbation theory is developed to investigate the damping of elementary excitations in the presence of a gaussian random field. The method is applied to several quantum statistical models, the ideal Fermi or Bose gas and the isotropic Heisenberg model.

Date: 1984
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:123:y:1984:i:2:p:625-631

DOI: 10.1016/0378-4371(84)90179-1

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