Zobrazeno 1 - 10
of 94
pro vyhledávání: '"Arean, Daniel"'
Non-Hermitian quantum field theories are a promising tool to study open quantum systems. These theories preserve unitarity if PT-symmetry is respected, and in that case an equivalent Hermitian description exists via the so-called Dyson map. Generical
Externí odkaz:
http://arxiv.org/abs/2411.18471
Autor:
Arean, Daniel, Garcia-Fariña, David
We construct and study inhomogenoeus non-Hermitian strongly coupled holographic field theories. We consider two models: a lattice where in each site there is some inflow/outflow of matter and a Hermitian/non-Hermitian/Hermitian junction. Depending on
Externí odkaz:
http://arxiv.org/abs/2410.13584
Publikováno v:
J. High Energ. Phys. 2024, 138 (2024)
We conduct an exhaustive study of the interior geometry of a family of asymptotically AdS$_{d+1}$ hairy black holes in an analytically controllable setup. The black holes are exact solutions to an Einstein-Maxwell-Dilaton theory and include the well-
Externí odkaz:
http://arxiv.org/abs/2407.18430
Publikováno v:
Front.in Phys. 12 (2024)
The holographic duality (also known as AdS/CFT correspondence or gauge/gravity duality) postulates that strongly coupled quantum field theories can be described in a dual way in asymptotically Anti-de Sitter space. One of the cornerstones of this dua
Externí odkaz:
http://arxiv.org/abs/2407.04372
We study the linear response of relativistic superfluids with a non-zero superfluid velocity. For sufficiently large superflow, an instability develops via the crossing of a pole of the retarded Green's functions to the upper half complex frequency p
Externí odkaz:
http://arxiv.org/abs/2312.08243
Publikováno v:
JHEP 12 (2023) 187
Quasinormal modes and frequencies are the eigenvectors and eigenvalues of a non-Hermitian differential operator. They hold crucial significance in the physics of black holes. The analysis of quasinormal modes of black holes in asymptotically Anti-de
Externí odkaz:
http://arxiv.org/abs/2307.08751
Publikováno v:
JHEP 03 (2022) 015
We investigate the low-energy dynamics of systems with pseudo-spontaneously broken $U(1)$ symmetry and Goldstone phase relaxation. We construct a hydrodynamic framework which is able to capture these, in principle independent, effects. We consider tw
Externí odkaz:
http://arxiv.org/abs/2111.10305
Publikováno v:
JHEP 11 (2021) 206
We study the hydrodynamic excitations of backreacted holographic superfluids by computing the full set of quasinormal modes (QNMs) at finite momentum and matching them to the existing hydrodynamic theory of superfluids. Additionally, we analyze the b
Externí odkaz:
http://arxiv.org/abs/2107.08802
Publikováno v:
JHEP 11 (2021) 011
We employ hydrodynamics and gauge/gravity to study magneto-transport in phases of matter where translations are broken (pseudo-)spontaneously. First we provide a hydrodynamic description of systems where translations are broken homogeneously at nonze
Externí odkaz:
http://arxiv.org/abs/2107.00519
In this paper we study the dynamical properties of charged systems immersed in an external magnetic field and perturbed by a set of scalar operators breaking translations either spontaneously or pseudo-spontaneously. By combining hydrodynamic and qua
Externí odkaz:
http://arxiv.org/abs/2101.05343