Results 31 to 40 of about 105,946 (302)

Thermalization of Strongly Coupled Field Theories

open access: yesPhysical Review Letters, 2011
4 pages, 4 figures + 1 figure (v2), v2: new results added on entanglement entropy in 4d field theories and on entropy growth rate, v3: published ...
Balasubramanian V   +9 more
openaire   +8 more sources

Nonequilibrium Quantum Field Theory [PDF]

open access: yes, 2009
Bringing together the key ideas from nonequilibrium statistical mechanics and powerful methodology from quantum field theory, this 2008 book captures the essence of nonequilibrium quantum field theory.
Calzetta, Esteban A., Hu, Bei-Lok B.
core   +1 more source

On thermalization in classical scalar field theory [PDF]

open access: yesNuclear Physics B, 2000
Thermalization of classical fields is investigated in a ϕ^4 scalar field theory in 1+1 dimensions, discretized on a lattice. We numerically integrate the classical equations of motion using initial conditions sampled from various nonequilibrium probability distributions.
Aarts, Gert   +2 more
openaire   +4 more sources

Holographic thermal correlators: a tale of Fuchsian ODEs and integration contours

open access: yesJournal of High Energy Physics, 2023
We analyze real-time thermal correlation functions of conserved currents in holographic field theories using the grSK geometry, which provides a contour prescription for their evaluation.
R. Loganayagam   +2 more
doaj   +1 more source

THERMAL FIELD THEORY IN NON-EQUILIBRIUM STATES [PDF]

open access: yesInternational Journal of Modern Physics B, 1996
Conventional transport theory is not really applicable to nonequilibrium systems which exhibit strong quantum effects. We present two different approaches to overcome this problem. Firstly we point out how transport equations may be derived that incorporate a nontrivial spectral function as a typical quantum effect, and test this approach in a toy ...
Henning, P. A.   +2 more
openaire   +3 more sources

Nuclearity and Thermal States in Conformal Field Theory [PDF]

open access: yesCommunications in Mathematical Physics, 2006
We introduce a new type of spectral density condition, that we call L^2-nuclearity. One formulation concerns lowest weight unitary representations of SL(2,R) and turns out to be equivalent to the existence of characters. A second formulation concerns inclusions of local observable von Neumann algebras in Quantum Field Theory.
Buchholz, D, D'Antoni, C, LONGO, ROBERTO
openaire   +6 more sources

Real-time spin systems from lattice field theory

open access: yesJournal of High Energy Physics, 2023
We construct a lattice field theory method for computing the real-time dynamics of spin systems in a thermal bath. This is done by building on previous work of Takano with Schwinger-Keldysh and functional differentiation techniques. We derive a Schwinger-
Neill C. Warrington
doaj   +1 more source

Perturbative nonequilibrium thermal field theory [PDF]

open access: yesPhysical Review D, 2013
We present a new perturbative formulation of non-equilibrium thermal field theory, based upon non-homogeneous free propagators and time-dependent vertices. Our approach to non-equilibrium dynamics yields time-dependent diagrammatic perturbation series that are free of pinch singularities, without the need to resort to quasi-particle approximation or ...
Millington, P; id_orcid 0000-0001-6942-8257   +1 more
openaire   +4 more sources

Comparison of two different models for pile thermal response test interpretation [PDF]

open access: yes, 2014
Thermal response tests (TRTs) are regularly used to characterise the thermal resistance of borehole heat exchangers and to assess the thermal conductivity of the surrounding ground.
Loveridge, F.A.   +8 more
core   +1 more source

Spectral form factor of a quantum spin glass

open access: yesJournal of High Energy Physics, 2022
It is widely expected that systems which fully thermalize are chaotic in the sense of exhibiting random-matrix statistics of their energy level spacings, whereas integrable systems exhibit Poissonian statistics.
Michael Winer   +4 more
doaj   +1 more source

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