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Friction and particle-hole pairsThe effect induced by dissipation on quantum phenomena has recently been considered, taking into account as a starting point a phenomenological Hamiltonian in which the environment is simulated by an appropriately chosen set of harmonic oscillators. It is found that this approach should be adequate to describe the low-energy behavior of a wide class of environments. The present investigation is concerned with an analysis of the case in which the environment is a gas (or liquid) of fermions, and the relevant low-energy excitations are particle-hole pairs. A study is conducted regarding the extent to which the quantum results obtained for harmonic oscillators are also valid in the considered situation. Linear-response theory is used to derive an effective action which describes the motion of an external particle coupled to a normal Fermi fluid.
Document ID
19840066150
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Guinea, F.
(California, University Santa Barbara, CA, United States)
Date Acquired
August 12, 2013
Publication Date
September 24, 1984
Publication Information
Publication: Physical Review Letters
Volume: 53
ISSN: 0031-9007
Subject Category
Physics (General)
Accession Number
84A48937
Funding Number(s)
CONTRACT_GRANT: NSF PHY-77-27084
Distribution Limits
Public
Copyright
Other

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