Results 31 to 40 of about 5,465 (187)

Bulk Viscosity in Holographic Lifshitz Hydrodynamics [PDF]

open access: yes, 2013
We compute the bulk viscosity in holographic models dual to theories with Lifshitz scaling and/or hyperscaling violation, using a generalization of the bulk viscosity formula derived in arXiv:1103.1657 from the null focusing equation. We find that only a
Hoyos, Carlos, Kim, Bom Soo, Oz, Yaron
core   +2 more sources

Zero sound and higher-form symmetries in compressible holographic phases

open access: yesJournal of High Energy Physics, 2023
Certain holographic states of matter with a global U(1) symmetry support a sound mode at zero temperature, caused neither by spontaneous symmetry breaking of the global U(1) nor by the emergence of a Fermi surface in the infrared.
Richard A. Davison   +2 more
doaj   +1 more source

Zoology of Solid & Fluid Holography : Goldstone Modes and Phase Relaxation [PDF]

open access: yes, 2019
We provide a comprehensive classification of isotropic solid and fluid holographic models with broken translational invariance. We describe in detail the collective modes in both the transverse and longitudinal sectors.
Baggioli, Matteo, Grieninger, Sebastian
core   +2 more sources

Chaos and pole-skipping in a simply spinning plasma

open access: yesJournal of High Energy Physics, 2023
We study the relationship between many-body quantum chaos and energy dynamics in holographic quantum field theory states dual to the simply-spinning Myers-Perry-AdS5 black hole.
Markus A. G. Amano   +4 more
doaj   +1 more source

Holographic Plasmon Relaxation with and without Broken Translations [PDF]

open access: yes, 2019
We study the dynamics and the relaxation of bulk plasmons in strongly coupled and quantum critical systems using the holographic framework. We analyze the dispersion relation of the plasmonic modes in detail for an illustrative class of holographic ...
Alba, Amadeo Jimenez   +4 more
core   +3 more sources

Hydrodynamic transport in strongly coupled disordered quantum field theories

open access: yes, 2015
We compute direct current (dc) thermoelectric transport coefficients in strongly coupled quantum field theories without long lived quasiparticles, at finite temperature and charge density, and disordered on long wavelengths compared to the length scale ...
Lucas, Andrew
core   +1 more source

Generalised global symmetries in holography: magnetohydrodynamic waves in a strongly interacting plasma [PDF]

open access: yes, 2019
We begin the exploration of holographic duals to theories with generalised global (higher-form) symmetries. In particular, we focus on the case of magnetohydrodynamics (MHD) in strongly coupled plasmas by constructing and analysing a holographic dual to ...
Grozdanov, Sašo, Poovuttikul, Napat
core   +3 more sources

Higgs/amplitude mode dynamics from holography

open access: yesJournal of High Energy Physics, 2022
Second order phase transitions are universally driven by an order parameter which becomes trivial at the critical point. At the same time, collective excitations which involve the amplitude of the order parameter develop a gap which smoothly closes to ...
Aristomenis Donos, Christiana Pantelidou
doaj   +1 more source

Holography, hydrodynamics and flows

open access: yes, 2020
Hydrodynamic phenomena seem to be ubiquitous in the universe. Hydrodynamics provides an effective, long-wavelength description of both classical and quantum systems. We study the universal spatial features of certain non-equilibrium steady states corresponding to flows of strongly correlated fluids over obstacles.
openaire   +2 more sources

Time evolving fluid from Vaidya spacetime

open access: yes, 2017
A time evolving fluid system is constructed on a timelike boundary hypersurface at finite cutoff in Vaidya spacetime. The approach used to construct the fluid equations is a direct extension of the ordinary Gravity/Fluid correspondence under the ...
Hao, Xin, Wu, Bin, Zhao, Liu
core   +1 more source

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