A holographic superfluid symphony

A bstract 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 behavior of the low-energy excitations in...

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Veröffentlicht in:The journal of high energy physics Jg. 2021; H. 11; S. 1 - 40
Hauptverfasser: Areán, Daniel, Baggioli, Matteo, Grieninger, Sebastian, Landsteiner, Karl
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Berlin/Heidelberg Springer Berlin Heidelberg 26.11.2021
Springer Nature B.V
SpringerOpen
Schlagworte:
AdS-CFT Correspondence
Classical and Quantum Gravitation
Computation
Constitutive relationships
Elementary Particles
Excitation
Field theory
Fluids
Gauge-gravity correspondence
High energy physics
Holography
Holography and condensed matter physics (AdS/CMT)
Momentum
Phase diagrams
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Regular Article - Theoretical Physics
Relativity Theory
String Theory
Superfluidity
AdS-CFT Correspondence
Gauge-gravity correspondence
Holography and condensed matter physics (AdS/CMT)
ISSN:1029-8479, 1029-8479
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Zusammenfassung:A bstract 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 behavior of the low-energy excitations in real frequency and complex momentum, going beyond the standard QNM picture. Finally, we carry out a novel type of study of the model by computing the support of the hydrodynamic modes across the phase diagram. We achieve this by determining the support of the corresponding QNMs on the different operators in the dual theory, both in complex frequency and complex momentum space. From the support, we are able to reconstruct the hydrodynamic dispersion relations using the hydrodynamic constitutive relations. Our analysis rules out a role-reversal phenomenon between first and second sound in this model, contrary to results obtained in a weakly coupled field theory framework.
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ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP11(2021)206