Holographic phonons by gauge-axion coupling

Autor:	Wang, Xi-Jing, Li, Wei-Jia
Rok vydání:	2021
Předmět:	High Energy Physics - Theory Condensed Matter - Strongly Correlated Electrons General Relativity and Quantum Cosmology
Zdroj:	JHEP 07 (2021) 131
Druh dokumentu:	Working Paper
DOI:	10.1007/JHEP07(2021)131
Popis:	In this paper, we show that a simple generalization of the holographic axion model can realize spontaneous breaking of translational symmetry by considering a special gauge-axion higher derivative term. The finite real part and imaginary part of the stress tensor imply that the dual boundary system is a viscoelastic solid. By calculating quasi-normal modes and making a comparison with predictions from the elasticity theory, we verify the existence of phonons and pseudo-phonons, where the latter is realized by introducing a weak explicit breaking of translational symmetry, in the transverse channel. Finally, we discuss how the phonon dynamics affects the charge transport. Comment: v3: 29 pages, 11 figures, matching the version published in JHEP
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2105.07225 Zobrazit plný text záznamu View this record from Arxiv