Finite temperature dynamic susceptibility of the free Bose gas

Authors
Mazzanti, F Polls, A
Citation
F. Mazzanti et A. Polls, Finite temperature dynamic susceptibility of the free Bose gas, PHYS LETT A, 283(1-2), 2001, pp. 136-145
Citations number
11
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS A
ISSN journal
03759601 → ACNP
Volume
283
Issue
1-2
Year of publication
2001
Pages
136 - 145
Database
ISI
SICI code
0375-9601(20010507)283:1-2<136:FTDSOT>2.0.ZU;2-4
Abstract
A detailed calculation of the real part of the finite temperature dynamic s usceptibility of the free Bose gas is presented. After a short discussion o n the different ways in which it can he calculated for temperatures above a nd below the Bose-Einstein transition temperature, its main properties and its evolution with q and T are analyzed. Finally, expressions for the lowes t-order energy weighted sum rules are also derived and studied. (C) 2001 Pu blished by Elsevier Science B.V.