Results 11 to 20 of about 4,679 (154)

Hydrodynamic and non-hydrodynamic excitations in kinetic theory — a numerical analysis in scalar field theory

open access: yesJournal of High Energy Physics, 2023
Abstract Viscous hydrodynamics serves as a successful mesoscopic description of the Quark-Gluon Plasma produced in relativistic heavy-ion collisions. In order to investigate, how such an effective description emerges from the underlying microscopic dynamics we calculate the hydrodynamic and non-hydrodynamic modes of linear response
Ochsenfeld, Stephan, Schlichting, Sören
openaire   +3 more sources

Thermalization and hydrodynamics of two-dimensional quantum field theories

open access: yesSciPost Physics, 2022
We consider 2d QFTs as relevant deformations of CFTs in the thermodynamic limit. Using causality and KPZ universality, we place a lower bound on the timescale characterizing the onset of hydrodynamics. The bound is determined parametrically in terms of the temperature and the scale associated with the relevant deformation.
Delacretaz, Luca, V   +3 more
openaire   +3 more sources

Hydrodynamics, spin currents and torsion

open access: yesJournal of High Energy Physics, 2023
We construct the canonical constitutive relations for a fluid description of a system with a spin current, valid in an arbitrary number of dimensions in the absence of parity breaking or time reversal breaking terms. Our study encompasses the hydrostatic
A. D. Gallegos, U. Gürsoy, A. Yarom
doaj   +1 more source

Feynman rules for forced wave turbulence

open access: yesJournal 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
doaj   +1 more source

Hydrodynamic quantum field theory: the free particle [PDF]

open access: yesComptes Rendus. Mécanique, 2020
We revisit de Broglie’s double-solution pilot-wave theory in light of insights gained from the hydrodynamic pilot-wave system discovered by Couder and Fort [1]. de Broglie proposed that quantum particles are characterized by an internal oscillation at the Compton frequency, at which rest mass energy is exchanged with field energy ...
Dagan, Yuval, Bush, John WM
openaire   +3 more sources

Determining all thermodynamic transport coefficients for an interacting large N quantum field theory

open access: yesJournal 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
doaj   +1 more source

From quantum field theory to hydrodynamics: Transport coefficients and effective kinetic theory [PDF]

open access: yesPhysical Review D, 1996
The evaluation of hydrodynamic transport coefficients in relativistic field theory, and the emergence of an effective kinetic theory description, is examined. Even in a weakly-coupled scalar field theory, interesting subtleties arise at high temperatures where thermal renormalization effects are important.
Jeon, Sangyong, Yaffe, Laurence G.
openaire   +3 more sources

Goldstone bosons and fluctuating hydrodynamics with dipole and momentum conservation

open access: yesJournal of High Energy Physics, 2023
We develop a Schwinger-Keldysh effective field theory describing the hydrodynamics of a fluid with conserved charge and dipole moments, together with conserved momentum.
Paolo Glorioso   +4 more
doaj   +1 more source

EFFECTIVE FIELD THEORY OF IDEAL-FLUID HYDRODYNAMICS [PDF]

open access: yesModern Physics Letters B, 1996
Starting from a standard description of an ideal, isentropic fluid, we derive the effective theory governing a gapless non-relativistic mode — the sound mode. The theory, which is dictated by the requirement of Galilei invariance, entails the entire set of hydrodynamic equations.
openaire   +2 more sources

Holographic constraints on Bjorken hydrodynamics at finite coupling

open access: yesJournal of High Energy Physics, 2017
In large-N c conformal field theories with classical holographic duals, inverse coupling constant corrections are obtained by considering higher-derivative terms in the corresponding gravity theory.
Brandon S. DiNunno   +3 more
doaj   +1 more source

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