Results 21 to 30 of about 11,870,717 (270)

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

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

New dynamical realizations of the Lifshitz group

open access: yesNuclear Physics B, 2023
The method of nonlinear realizations is applied to construct new dynamical realizations of the Lifshitz group in mechanics, hydrodynamics, and field theory.
Timofei Snegirev
doaj   +1 more source

Hydrodynamic transport coefficients in relativistic scalar field theory [PDF]

open access: yesPhysical Review D, 1995
Hydrodynamic transport coefficients may be evaluated from first principles in a weakly coupled scalar field theory at arbitrary temperature. In a theory with cubic and quartic interactions, the infinite class of diagrams which contribute to the leading weak coupling behavior are identified and summed. The resulting expression may be reduced to a single
openaire   +3 more sources

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

Non-reflecting boundary conditions and tensile instability in smooth particle hydrodynamics [PDF]

open access: yes, 2012
This thesis aimed at the understanding and further development of smoothed particle hydrodynamics (SPH). The first part described the implementations of non-reflecting boundary conditions for elastic- waves in SPH. The second part contains a stability
Powell, Seimon
core   +7 more sources

Holographic viscoelastic hydrodynamics

open access: yesJournal of High Energy Physics, 2019
Relativistic fluid hydrodynamics, organized as an effective field theory in the velocity gradients, has zero radius of convergence due to the presence of non-hydrodynamic excitations.
Alex Buchel, Matteo Baggioli
doaj   +1 more source

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

Cosmological implications of the hydrodynamical phase of group field theory [PDF]

open access: yesGeneral Relativity and Gravitation, 2021
34 ...
Luciano Gabbanelli, Silvia De Bianchi
openaire   +3 more sources

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