Results 21 to 30 of about 2,052,149 (318)
Effective field theory approach to thermal bubble nucleation [PDF]
Physical Review D, 2021 The standard vacuum bounce formalism suffers from inconsistencies when applied to thermal bubble nucleation, for which ad hoc workarounds are commonly adopted.
O. Gould, J. Hirvonen
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Thermal Field Theory in real-time formalism: concepts and applications for particle decays [PDF]
European Physical Journal A, 2020 This review represents a detailed and comprehensive discussion of the Thermal Field Theory (TFT) concepts and key results in Yukawa-type theories. We start with a general pedagogical introduction into the TFT in the imaginary- and real-time formulation ...
Torbjörn Lundberg, R. Pasechnik
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Thermal quantum gravity condensates in group field theory cosmology [PDF]
Physical Review D, 2020 The condensate cosmology program of group field theory has produced several interesting results. The key idea is in the suggestion that a macroscopic homogeneous spacetime can be approximated by a dynamical condensate phase of the underlying microscopic ...
Mehdi Assanioussi, Isha Kotecha
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Interplay between improved interaction rates and modified cosmological histories for dark matter
Frontiers in Physics, 2023 A novel particle has been and still is an intriguing option to explain the strong evidence for dark matter in our universe. To quantitatively predict the dark matter energy density, two main ingredients are needed: interaction rates and the history of ...
Simone Biondini
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Feynman rules for forced wave turbulence
Journal of High Energy Physics, 2023 It has long been known that weakly nonlinear field theories can have a late-time stationary state that is not the thermal state, but a wave turbulent state with a far-from-equilibrium cascade of energy.
Vladimir Rosenhaus, Michael Smolkin
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Thermal Effects in Ising Cosmology
Universe, 2023 We consider a real scalar field in de Sitter background and compute its thermal propagators. We propose that in a dS/CFT context, nontrivial thermal effects as seen by an ‘out’ observer can be encoded in the anomalous dimensions of the d=3 Ising model ...
Nikos Irges +2 more
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From spin chains to real-time thermal field theory using tensor networks [PDF]
Physical Review Research, 2019 One of the most interesting directions in theoretical high-energy and condensed-matter physics is understanding dynamical properties of collective states of quantum field theories.
M. Bañuls +4 more
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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 of bosonic gases with finite-range effective interaction [PDF]
, 2017 We study a dilute and ultracold Bose gas of interacting atoms by using an effective field theory which takes account finite-range effects of the inter-atomic potential.
A. Cappellaro, L. Salasnich
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Renormalized thermal entropy in field theory [PDF]
Physical 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
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