Results 11 to 20 of about 14,043,509 (296)

INTRODUCTION TO THERMAL FIELD THEORY [PDF]

open access: yesInternational Journal of Modern Physics A, 1993
This is a very basic introduction and short (and of course incomplete) overview of thermal field theory. In the first part, I introduce the thermal propagator at a very simple level and give the Feynman rules using the time-path contour method. In the second part, I give examples of these rules in scalar theory and discuss the origin of the thermal ...
Altherr, T.
openaire   +5 more sources

Leontovich relations in thermal field theory [PDF]

open access: yesThe European Physical Journal C, 2000
14 pages, 4 ...
Thoma, Markus H.
openaire   +4 more sources

Thermal mean-field theories [PDF]

open access: yesThe Journal of Chemical Physics
Several closely related ab initio thermal mean-field theories for fermions, both well-established and new ones, are compared with one another at the formalism level and numerically. The theories considered are Fermi–Dirac theory; thermal Hartree–Fock (HF) theory; two modifications of the thermal single-determinant approximation of Kaplan and Argyres ...
Pinhao Gu, So Hirata
openaire   +4 more sources

Thermal equilibrium states in perturbative Algebraic Quantum Field Theory in relation to Thermal Field Theory

open access: yes, 2019
In the first part, we analyse the properties of an interacting, massive scalar field in an equilibrium state over Minkowski spacetime. We compare the known real- and imaginary-time formalisms of Thermal Field Theory with the recent construction by Fredenhagen and Lindner of a KMS state for perturbative interacting theories in the context of ...
BRAGA DE GOES E VASCONCELLOS, JOAO
openaire   +3 more sources

Thermal Field Theory

open access: yes, 1996
Now in paperback, this text introduces the theoretical framework for describing the quark-gluon plasma, an important new state of matter. The first part of this book is a self-contained introduction to relativistic thermal field theory. Topics include the path integral approach, the real and the imaginary time formalisms, fermion fields and gauge ...
Le Bellac, Michel
openaire   +2 more sources

Scalar thermal field theory for a rotating plasma

open access: yesEuropean Physical Journal C: Particles and Fields
This paper initiates the systematic study of thermal field theory for generic equilibrium density matrices, which feature arbitrary values not only of temperature and chemical potentials, but also of average angular momentum.
Alberto Salvio
doaj   +4 more sources

Thermal corrections to Rényi entropy in BMS field theory [PDF]

open access: yesJournal of High Energy Physics
In the study of three-dimensional flat holography, the BMS field theory manifests the infinite-dimensional BMS3 symmetry, a powerful tool in elucidating numerous universal phenomena.
Yuan Zhong
doaj   +2 more sources

Quantum and thermal fluctuations in field theory [PDF]

open access: yesPhysical Review D, 1995
27pp+7 figures, MIT-CTP ...
Liao, Sen-Ben   +2 more
openaire   +3 more sources

Equilibrium States in Thermal Field Theory and in Algebraic Quantum Field Theory [PDF]

open access: yesAnnales Henri Poincaré, 2019
40 ...
Braga de GoesVasconcellos J.   +2 more
openaire   +5 more sources

Renormalized thermal entropy in field theory [PDF]

open access: yesPhysical Review D, 2009
Standard entropy calculations in quantum field theory, when applied to a subsystem of definite volume, exhibit area-dependent UV divergences that make a thermodynamic interpretation troublesome. In this paper we define a renormalized entropy which is related with the Newton-Wigner position operator. Accordingly, whenever we trace over a region of space,
CACCIATORI, SERGIO LUIGI   +2 more
openaire   +6 more sources

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