Marko Medenjak (Author), Tomaž Prosen (Author), Lenart Zadnik (Author)

Abstract

Dynamical response functions are standard tools for probing local physics near the equilibrium. They provide information about relaxation properties after the equilibrium state is weakly perturbed. In this paper we focus on systems which break the assumption of thermalization by exhibiting persistent temporal oscillations. We provide rigorous bounds on the Fourier components of dynamical response functions in terms of extensive or local dynamical symmetries, i.e. extensive or local operators with periodic time dependence. Additionally, we discuss the effects of spatially inhomogeneous dynamical symmetries. The bounds are explicitly implemented on the example of an interacting Floquet system, specifically in the integrable Trotterization of the Heisenberg XXZ model.

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Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL FMF - Faculty of Mathematics and Physics
UDC: 530.145
COBISS: 43040771 Link will open in a new window
ISSN: 2542-4653
Views: 281
Downloads: 149
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Other data

Secondary language: English
Pages: 18 str.
Volume: ǂVol. ǂ9
Issue: ǂart. no. ǂ003
Chronology: Jul. 2020
DOI: 10.21468/SciPostPhys.9.1.003
ID: 12345755