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Title: Duration of classicality in highly degenerate interacting Bosonic systems

We study sets of oscillators that have high quantum occupancy and that interact by exchanging quanta. It is shown by analytical arguments and numerical simulation that such systems obey classical equations of motion only on time scales of order their relaxation time τ and not longer than that. The results are relevant to the cosmology of axions and axion-like particles.
Authors:
 [1] ; ORCiD logo [1]
  1. Univ. of Florida, Gainesville, FL (United States). Dept. of Physics
Publication Date:
Grant/Contract Number:
FG02-97ER41029; 2015-109
Type:
Accepted Manuscript
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 770; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Research Org:
Univ. of Florida, Gainesville, FL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25); Heising-Simons Foundation (United States)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
OSTI Identifier:
1425616