Results 11 to 20 of about 94,441 (263)
Determining all thermodynamic transport coefficients for an interacting large N quantum field theory
Journal of High Energy Physics, 2023 Thermodynamic transport coefficients can be calculated directly from quantum field theory without requiring analytic continuation to real time. We determine all second-order thermodynamic transport coefficients for the uncharged N-component massless ...
Max Weiner, Paul Romatschke
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Thermal field theory and infinite statistics [PDF]
Nuclear Physics B, 1993 We construct a quantum thermal field theory for scalar particles in the case of infinite statistics. The extension is provided by working out the Fock space realization of a "quantum algebra", and by identifying the hamiltonian as the energy operator.
Altherr, T., Grandou, T.
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INTRODUCTION TO THERMAL FIELD THEORY [PDF]
International 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 ...
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THERMAL RENORMALONS IN SCALAR FIELD THEORY [PDF]
Modern Physics Letters A, 2000 In the framework of the scalar theory gϕ4, we explore the occurrence of thermal renormalons, i.e. temperature-dependent singularities in the Borel plane. The discussion of a particular renormalon type diagram at finite temperature, using Thermofield Dynamics, allows us to establish that these singularities actually get a temperature dependence.
Loewe, M., Valenzuela, C.
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Thermalization of Strongly Coupled Field Theories
Physical 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
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On thermalization in classical scalar field theory [PDF]
Nuclear 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
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Holographic thermal correlators: a tale of Fuchsian ODEs and integration contours
Journal 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
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THERMAL FIELD THEORY IN NON-EQUILIBRIUM STATES [PDF]
International 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
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Nuclearity and Thermal States in Conformal Field Theory [PDF]
Communications 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
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Real-time spin systems from lattice field theory
Journal 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
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