FINITE-TEMPERATURE MANY-PARTICLE THEORY OF CONDENSED MATTER SYSTEMS IN THE FUNCTIONAL SCHRODINGER PICTURE

Authors
NOH HS YOU SK KIM CK
Citation
Hs. Noh et al., FINITE-TEMPERATURE MANY-PARTICLE THEORY OF CONDENSED MATTER SYSTEMS IN THE FUNCTIONAL SCHRODINGER PICTURE, International journal of modern physics b, 11(15), 1997, pp. 1829-1837
Citations number
19
Categorie Soggetti
Physics, Condensed Matter","Physycs, Mathematical","Physics, Applied
Journal title
International journal of modern physics b → ACNP
ISSN journal
02179792
Volume
11
Issue
15
Year of publication
1997
Pages
1829 - 1837
Database
ISI
SICI code
0217-9792(1997)11:15<1829:FMTOCM>2.0.ZU;2-F
Abstract
A finite temperature many-particle theory of condensed matter systems is formulated using the functional Schrodinger picture. Using the inte racting electron gas as a model system, we solve the equation of motio n for the density matrix variationally with a Gaussian type trial dens ity matrix. We show that the present formalism yields the finite tempe rature Hartree-Fock results both for the para- and ferromagnetic state s in a simple and convenient fashion. Implications of the present resu lts and future prospects are also discussed.