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182 0 _ab
200 1 _aOne-loop omega-potential of quantum fields with ellipsoid constant-energy surface dispersion law
_fP. O. Kazinski, M. A. Shipulya
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 68 tit.]
330 _aRapidly 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.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tAnnals of Physics
463 _tVol. 326, iss. 10
_v[P. 2658-2693]
_d2011
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _ahigh-temperature expansion
610 1 _aChowla–Selberg expansion
610 1 _achemical potential oscillations
610 1 _aCasimir effect
700 1 _aKazinski
_bP. O.
701 1 _aShipulya
_bM. A.
_cphysicist
_cAssociate Professor of Tomsk Polytechnic University, Candidate of Physical and Mathematical Sciences
_f1986-
_gMikhail Alekseevich
_2stltpush
_3(RuTPU)RU\TPU\pers\47159
712 0 2 _aНациональный исследовательский Томский политехнический университет (ТПУ)
_bФизико-технический институт (ФТИ)
_bКафедра высшей математики и математической физики (ВММФ)
_h139
_2stltpush
_3(RuTPU)RU\TPU\col\18727
801 2 _aRU
_b63413507
_c20220401
_gRCR
856 4 _uhttps://doi.org/10.1016/j.aop.2011.07.004
942 _cCF