APS » PROLA » Phys. Rev. E » Volume 63 » Issue 6
< Previous article | Next article >

Phys. Rev. E 63, 066115 (2001) [8 pages]

Test particle in a quantum gas

Download: PDF (102 kB) or Buy this Article (Use Article Pack) Export: BibTeX or EndNote (RIS)

Bassano Vacchini *
Dipartimento di Fisica dell’Università di Milano and Istituto Nazionale di Fisica Nucleare, Sezione di Milano, Via Celoria 16, I-20133, Milan, Italy

Received 9 June 2000; published 22 May 2001

A master equation with a Lindblad structure is derived, which describes the interaction of a test particle with a macroscopic system and is expressed in terms of the operator valued dynamic structure factor of the system. In the case of a free Fermi or Bose gas the result is evaluated in the Brownian limit, thus obtaining a single generator master equation for the description of quantum Brownian motion in which the correction due to quantum statistics is explicitly calculated. The friction coefficients for Boltzmann and Bose or Fermi statistics are compared.


©2001 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevE.63.066115
DOI: 10.1103/PhysRevE.63.066115
PACS: 05.40.Jc, 05.30.Fk, 05.30.Jp, 05.60.Gg

* Email address: bassano.vacchini@mi.infn.it

[ Abstract  |  Previous article  |  Next article  |  Issue 6 ]