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We argue that the chiral conductivities of generic s-wave holographic superfluids, whose broken U(1) symmetry is anomalous, exhibit universal behavior at low temperatures. The universal behavior we argue for is independent of the details of…

High Energy Physics - Theory · Physics 2015-06-18 Irene Amado , Nir Lisker , Amos Yarom

We generalize the Gubser solution of viscous hydrodynamics by including the finite density effect and analytically compute the flow harmonics $v_n$. We explicitly show how $v_n$ and their viscous corrections depend on the chemical…

High Energy Physics - Phenomenology · Physics 2015-12-09 Yoshitaka Hatta , Akihiko Monnai , Bo-Wen Xiao

We investigate the expansion dynamics of a dilute Fermi gas at unitarity in the context of dissipative fluid dynamics. Our aim is to quantify the effects of shear viscosity on the time evolution of the system. We compare exact numerical…

Quantum Gases · Physics 2013-05-29 Thomas Schaefer

In this paper, we study the holography of quasi-topological gravity in several aspects. We redo the calculation of shear viscosity on the boundary CFT with a new method which is associated with conserved Noether current and show that it has…

High Energy Physics - Theory · Physics 2018-08-07 Jun Peng , Xing-Hui Feng

The microscopic formulas for the shear viscosity $\eta$, the bulk viscosity $\zeta$, and the corresponding relaxation times $\tau_\pi$ and $\tau_\Pi$ of causal dissipative relativistic fluid-dynamics are obtained at finite temperature and…

High Energy Physics - Theory · Physics 2013-05-24 Xu-Guang Huang , Tomoi Koide

We study transport phenomena in p-wave superfluids in the context of gauge/gravity duality. Due to the spacetime anisotropy of this system, the tensorial structure of the transport coefficients is non-trivial in contrast to the isotropic…

High Energy Physics - Theory · Physics 2012-01-31 Johanna Erdmenger , Patrick Kerner , Hansjörg Zeller

We review and refine the finite size scaling analysis of specific heat and London penetration depths data of cuprate superconductors and compare it to the analysis of specific heat measurements near the superfluid transition of 4He confined…

Superconductivity · Physics 2007-05-23 T. Schneider

We review a recent holographic analysis arXiv:1005.4690 of charged black holes with scalar hair in view of their applications to the cuprate high temperature superconductors. We show in particular that these black holes show an interesting…

High Energy Physics - Theory · Physics 2011-07-26 Rene Meyer , B. Gouteraux , Bom Soo Kim

The theory of superfluid dark matter is characterized by self-interacting sub-eV particles that thermalize and condense to form a superfluid core in galaxies. Massive black holes at the center of galaxies, however, modify the dark matter…

Cosmology and Nongalactic Astrophysics · Physics 2024-05-24 Lasha Berezhiani , Giordano Cintia , Valerio De Luca , Justin Khoury

Einstein equations projected on to a black hole horizon gives rise to Navier-Stokes equations. Horizon-fluids typically possess unusual features like negative bulk viscosity and it is not clear whether a statistical mechanical description…

General Relativity and Quantum Cosmology · Physics 2016-03-23 Swastik Bhattacharya , S. Shankaranarayanan

In this paper we study the ratio of shear viscosity to entropy, electrical and thermal conductivities for the R-charged black hole in STU model. We generalize previous works to the case of a black hole with three different charges. Actually…

High Energy Physics - Theory · Physics 2013-02-11 J. Sadeghi , B. Pourhassan , A. R. Amani

Search for the conjectured QCD critical point is one of the major scientific goals for the Beam Energy Scan program at RHIC. The growth of the correlation length is a universal feature for systems near criticality, and bulk viscosity…

Nuclear Theory · Physics 2018-03-14 Akihiko Monnai , Swagato Mukherjee , Yi Yin

We explore the influence of dissipation on a paradigmatic driven-dissipative model where a collection of two level atoms interact with both quadratures of a quantum cavity mode. The closed system exhibits multiple phase transitions…

Quantum Gases · Physics 2018-09-18 Matteo Soriente , Tobias Donner , R. Chitra , Oded Zilberberg

A transonic fluid flow generates an acoustic hole that is the hydrodynamic analogue of a gravitational black hole. Acoustic holes emit a detectable thermal radiation of phonons at a characteristic Hawking temperature. The crucial concept is…

General Relativity and Quantum Cosmology · Physics 2024-10-03 Maria Luisa Chiofalo , Dario Grasso , Massimo Mannarelli , Silvia Trabucco

The bulk viscosity of cold, dense three-flavor quark matter is studied as a function of temperature and the amplitude of density oscillations. The study is also extended to the case of two different types of anharmonic oscillations of…

Nuclear Theory · Physics 2015-03-17 Igor A. Shovkovy , Xinyang Wang

The bulk viscosity determines dissipation during hydrodynamic expansion. It vanishes in scale invariant fluids, while a nonzero value quantifies the deviation from scale invariance. For the dilute Fermi gas the bulk viscosity is given…

Quantum Gases · Physics 2019-11-20 Tilman Enss

In this paper, we extend the study of holographic superfluids from planar topology to spherical topology, inspired by recent studies on Bose-Einstein condensation (BEC) on shell-shaped geometry. We investigate the superfluid phase…

High Energy Physics - Theory · Physics 2025-03-05 Meng Gao , Zhuan Ning , Yu Tian , Hongbao Zhang

We investigate background metrics for 2+1-dimensional holographic theories where the equilibrium solution behaves as a perfect fluid, and admits thus a thermodynamic description. We introduce stationary perfect-Cotton geometries, where the…

High Energy Physics - Theory · Physics 2015-06-17 Ayan Mukhopadhyay , Anastasios C. Petkou , P. Marios Petropoulos , Valentina Pozzoli , Konstadinos Siampos

We explain a method for computing the bulk viscosity of strongly coupled thermal plasmas dual to supergravity backgrounds supported by one scalar field. Whereas earlier investigations required the computation of the leading dissipative term…

High Energy Physics - Theory · Physics 2009-12-10 Steven S. Gubser , Silviu S. Pufu , Fabio D. Rocha

We study the intrinsic nature of the finite system-size effect in estimating shear viscosity of dilute and dense fluids within the framework of the Green-Kubo approach. From extensive molecular dynamics simulations, we observe that the size…

Chemical Physics · Physics 2019-10-02 Kang-Sahn Kim , Changho Kim , George Em Karniadakis , Eok Kyun Lee , John J. Kozak