Dissipation in holographic superfluids

Donos, Aristomenis; Kailidis, Polydoros; Pantelidou, Christiana

Abstract

We study dissipation in holographic superfluids at finite temperature and zero chemical potential. The zero overlap with the heat current allows us to isolate the physics of the conserved current corresponding to the broken global U(1). By using analytic techniques we write constitutive relations including the first non-trivial dissipative terms. The corresponding transport coefficients are determined in terms of thermodynamic quantities and the black hole horizon data. By analysing their behaviour close to the phase transition we show explicitly the breakdown of the hydrodynamic expansion. Finally, we study the pseudo-Goldstone mode that emerges upon introducing a perturbative symmetry breaking source and we determine its resonant frequency and decay rate.

Citation

Donos, A., Kailidis, P., & Pantelidou, C. (2021). Dissipation in holographic superfluids. Journal of High Energy Physics, 2021(9), Article 134. https://doi.org/10.1007/jhep09%282021%29134

• Journal Article Type: Article
• Acceptance Date: Sep 2, 2021
• Online Publication Date: Sep 21, 2021
• Publication Date: 2021-09
• Deposit Date: Sep 25, 2021
• Publicly Available Date: Jan 24, 2022
• Journal: Journal of High Energy Physics
• Print ISSN: 1126-6708
• Electronic ISSN: 1029-8479
• Publisher: Scuola Internazionale Superiore di Studi Avanzati (SISSA)
• Peer Reviewed: Peer Reviewed
• Volume: 2021
• Issue: 9
• Article Number: 134
• DOI: https://doi.org/10.1007/jhep09%282021%29134
• Public URL: https://durham-repository.worktribe.com/output/1239969