Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Amado, Irene"'
Publikováno v:
JHEP 1803 (2018) 075
The emergent nature of spacetime geometry and black holes can be directly probed in simple holographic duals of higher spin gravity and tensionless string theory. To this end, we study time dependent thermal correlation functions of gauge invariant o
Externí odkaz:
http://arxiv.org/abs/1712.06963
Boundary correlation functions provide insight into the emergence of an effective geometry in higher spin gravity duals of O(N) or U(N) symmetric field theories. On a compact manifold, the singlet constraint leads to nontrivial dynamics at finite tem
Externí odkaz:
http://arxiv.org/abs/1612.03009
Autor:
Amado, Irene, Yarom, Amos
We follow the evolution of an asymptotically AdS black brane with a fixed temperature gradient at spatial infinity until a steady state is formed. The resulting energy density and energy flux of the steady state in the boundary theory are compared to
Externí odkaz:
http://arxiv.org/abs/1501.01627
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 the bulk
Externí odkaz:
http://arxiv.org/abs/1401.5795
Publikováno v:
Phys. Rev. D 89, 026009 (2014)
We study the phase diagram of a holographic model realizing a U(2) global symmetry on the boundary and show that at low temperature a phase with both scalar s and vector p condensates exists. This is the s+p-wave phase where the global U(2) symmetry
Externí odkaz:
http://arxiv.org/abs/1309.5086
Autor:
Amado, Irene, Arean, Daniel, Jimenez-Alba, Amadeo, Landsteiner, Karl, Melgar, Luis, Landea, Ignacio Salazar
We revisit the question of stability of holographic superfluids with finite superfluid velocity. Our method is based on applying the Landau criterion to the Quasinormal Mode (QNM) spectrum. In particular we study the QNMs related to the Goldstone mod
Externí odkaz:
http://arxiv.org/abs/1307.8100
Autor:
Amado, Irene, Arean, Daniel, Jimenez-Alba, Amadeo, Landsteiner, Karl, Melgar, Luis, Landea, Ignacio Salazar
The Goldstone theorem implies the appearance of an ungapped mode whenever a continuous global symmetry is spontaneously broken. In general it does not say anything about the precise form of the dispersion relation nor does it imply that there is one
Externí odkaz:
http://arxiv.org/abs/1302.5641
Autor:
Amado, Irene, Faedo, Anton F.
Publikováno v:
JHEP 1107:004,2011
We provide the first black hole solutions with Lifshitz asymptotics found in string theory. These are expected to be dual to models enjoying anisotropic scale invariance with dynamical exponent z=2 at finite temperature. We employ a consistent trunca
Externí odkaz:
http://arxiv.org/abs/1105.4862
Publikováno v:
JHEP 05 (2011) 081
In the presence of dense matter quantum anomalies give rise to two new transport phenomena. An anomalous current is generated either by an external magnetic field or through vortices in the fluid carrying the anomalous charge. The associated transpor
Externí odkaz:
http://arxiv.org/abs/1102.4577
Publikováno v:
JHEP 0905:021,2009
We study the poles of the retarded Green functions of a holographic superconductor. The model shows a second order phase transition where a charged scalar operator condenses and a U(1) symmetry is spontaneously broken. The poles of the holographic Gr
Externí odkaz:
http://arxiv.org/abs/0903.2209