One-loop omega-potential of quantum fields with ellipsoid constant-energy surface dispersion law; Annals of Physics; Vol. 326, iss. 10

One-loop omega-potential of quantum fields with ellipsoid constant-energy surface dispersion law; Annals of Physics; Vol. 326, iss. 10

Détails bibliographiques
Parent link:Annals of Physics
Vol. 326, iss. 10.— 2011.— [P. 2658-2693]
Auteur principal: Kazinski P. O.
Collectivité auteur: Национальный исследовательский Томский политехнический университет (ТПУ) Физико-технический институт (ФТИ) Кафедра высшей математики и математической физики (ВММФ)
Autres auteurs: Shipulya M. A. Mikhail Alekseevich
Résumé:Title screen
Rapidly convergent expansions of a one-loop contribution to the partition function of quantum fields with ellipsoid constant-energy surface dispersion law are derived. The omega-potential is naturally decomposed into three parts: the quasiclassical contribution, the contribution from the branch cut of the dispersion law, and the oscillating part. The low- and high-temperature expansions of the quasiclassical part are obtained. An explicit expression and a relation of the contribution from the cut with the Casimir term and vacuum energy are established. The oscillating part is represented in the form of the Chowla–Selberg expansion of the Epstein zeta function. Various resummations of this expansion are considered. The general procedure developed is then applied to two models: massless particles in a box both at zero and nonzero chemical potential, and electrons in a thin metal film. Rapidly convergent expansions of the partition function and average particle number are obtained for these models. In particular, the oscillations of the chemical potential of conduction electrons in graphene and a thin metal film due to a variation of size of the crystal are described.
Режим доступа: по договору с организацией-держателем ресурса
Langue:anglais
Publié: 2011
Sujets:
электронный ресурс
труды учёных ТПУ
high-temperature expansion
Chowla–Selberg expansion
chemical potential oscillations
Casimir effect
Accès en ligne:https://doi.org/10.1016/j.aop.2011.07.004
Format: Électronique Chapitre de livre
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=667556

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