Kehrein, Stefan K.

[["dc.bibliographiccitation.artnumber","104302"],["dc.bibliographiccitation.issue","10"],["dc.bibliographiccitation.journal","Physical Review B"],["dc.bibliographiccitation.volume","93"],["dc.contributor.author","Abeling, Nils O."],["dc.contributor.author","Kehrein, Stefan"],["dc.date.accessioned","2020-12-10T18:20:24Z"],["dc.date.available","2020-12-10T18:20:24Z"],["dc.date.issued","2016"],["dc.description.abstract","The recently discovered dynamical phase transition denotes nonanalytic behavior in the real-time evolution of quantum systems in the thermodynamic limit, and it has been shown to occur in different systems at zero temperature [Heyl et al., Phys. Rev. Lett. 110, 135704 (2013)]. In this paper, we extend the analysis to nonzero temperature by studying a generalized form of the Loschmidt echo, the work distribution function, of a quantum quench in the transverse field Ising model. Although the quantitative behavior at nonzero temperatures still displays features derived from the zero-temperature nonanalyticities, it is shown that in this model dynamical phase transitions do not exist if T > 0. This is a consequence of the system being initialized in a thermal state. Moreover, we elucidate how the Tasaki-Crooks-Jarzynski relation can be exploited as a symmetry relation for a global quench or to obtain the change of the equilibrium free-energy density."],["dc.identifier.doi","10.1103/PhysRevB.93.104302"],["dc.identifier.eissn","2469-9969"],["dc.identifier.isi","000371960800003"],["dc.identifier.issn","2469-9950"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/75550"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Amer Physical Soc"],["dc.relation.issn","2469-9969"],["dc.relation.issn","2469-9950"],["dc.title","Quantum quench dynamics in the transverse field Ising model at nonzero temperatures"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]