Current correlation functions of ideal fermi gas at finite temperature

Kaur, R. P. ; Tankeshwar, K. ; Pathak, K. N. (2002) Current correlation functions of ideal fermi gas at finite temperature Pramana - Journal of Physics, 58 (4). pp. 703-711. ISSN 0304-4289

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Official URL: http://www.ias.ac.in/pramana/v58/p703/abs.htm

Related URL: http://dx.doi.org/10.1007/s12043-002-0027-2

Abstract

Expressions for transverse and longitudinal current-current correlation functions of an ideal Fermi gas describing the current fluctuations induced in the electron system by external probe perpendicular and parallel to the propagation of electron wave, have been obtained at finite temperature. The results obtained for transverse and longitudinal functions are presented for different values of wavelength and frequency at different temperatures. The diamagnetic susceptibility as a function of temperature has also been obtained from transverse current correlation function as its long wavelength and static limit, which smoothly cross over from known quantum values to the classical limit with increase in temperature.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Fermi Gas; Diamagnetic Susceptibility; Current Correlations
ID Code:56044
Deposited On:22 Aug 2011 13:07
Last Modified:18 May 2016 08:02

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