Results 61 to 70 of about 4,679 (154)
Effective field theories of dissipative fluids with one-form symmetries
Journal of High Energy PhysicsA system with a one-form global symmetry at finite temperature can be viewed as a dissipative fluid of string-like objects. In this work, we classify and construct the most general effective field theories for hydrodynamics of such string fluids, in a ...
Shreya Vardhan +3 more
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Hydrodynamics: from effective field theory to holography
, 2014 Hydrodynamics is an effective theory that is extremely successful in describing a wide range of physical phenomena in liquids, gases and plasmas. However, our understanding of the structure of the theory, its microscopic origins and its behaviour at strong coupling is far from complete. To understand how an effective theory of dissipative hydrodynamics
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Holographic Rényi n → 0 entropy and Euclidean fluids
Journal of High Energy PhysicsWe explore the holographic prescription for computing the refined Rényi entropies S ~ n $$ {\overset{\sim }{S}}_n $$ in the n → 0 limit within the AdS d+1/CFT d framework.
Cesar A. Agón +2 more
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Dissipative spin hydrodynamics from quantum field theory
, 2022 The aim of this thesis is to provide a complete and consistent derivation of second-order dissipative relativistic spin hydrodynamics from quantum field theory. We will proceed in two main steps. The first one is the formulation of spin kinetic theory from quantum field theory using the Wigner-function formalism and performing an expansion in powers of
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Field redefinitions and evolutions in relativistic Navier-Stokes
Journal of High Energy PhysicsIn recent years the equations of relativistic first-order viscous hydrodynamics, that is, the relativistic version of Navier-Stokes, have been shown to be well posed and causal under appropriate field redefinitions, also known as hydrodynamic frames.
Yago Bea, Pau Figueras
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Hydrodynamic properties in soliton field theory
The crucial role of hydrodynamic instabilities in soliton field theory is revealed. We demonstrate that the essential of soliton formation mechanism is the sound mode instability induced by thermodynamic instability. This instability triggers phase separation, where new thermal phases are generated to produce solitons. These solitons can be regarded as
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Relativistic dispersion spectra across Lorentz boosted frames: spurious modes and causality
Journal of High Energy PhysicsThe analysis of excitation spectra in gradient-expanded relativistic fluid theories frequently leads to pathologies under Lorentz boosts. However, extracting the dispersion modes in a Lorentz boosted inertial frame can be nontrivial.
Sayantani Bhattacharyya +3 more
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Journal of High Energy PhysicsWe use linear response theory to derive both the non-dissipative and dissipative effects of spin polarization for massive and massless interacting spin 1/2 particles in a relativistic fluid. We list and classify all the possible contributions up to first
Matteo Buzzegoli
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Hydrodynamization in hybrid Bjorken flow attractors
Journal of High Energy PhysicsHybrid fluid models, consisting of two sectors with more weakly and more strongly self-interacting degrees of freedom coupled consistently as in the semi-holographic framework, have been shown to exhibit an attractor surface for Bjorken flow.
Toshali Mitra +4 more
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