Initial-state-independent equilibration at the breakdown of the eigenstate thermalization hypothesis

DC FieldValueLanguage
dc.contributor.authorKhodja, Abdellah
dc.contributor.authorSchmidtke, Daniel
dc.contributor.authorGemmer, Jochen
dc.date.accessioned2021-12-23T15:56:18Z-
dc.date.available2021-12-23T15:56:18Z-
dc.date.issued2016
dc.identifier.issn24700045
dc.identifier.urihttps://osnascholar.ub.uni-osnabrueck.de/handle/unios/2286-
dc.description.abstractThis work aims at understanding the interplay between the eigenstate thermalization hypothesis (ETH), initial state independent equilibration, and quantum chaos in systems that do not have a direct classical counterpart. It is based on numerical investigations of asymmetric Heisenberg spin ladders with varied interaction strengths between the legs, i.e., along the rungs. The relaxation of the energy difference between the legs is investigated. Two different parameters, both intended to quantify the degree of accordance with the ETH, are computed. Both indicate violation of the ETH at large interaction strengths but at different thresholds. Indeed, the energy difference is found not to relax independently of its initial value above some critical interaction strength, which coincides with one of the thresholds. At the same point the level statistics shift from Poisson-type to Wigner-type. Hence, the system may be considered to become integrable again in the strong interaction limit.
dc.language.isoen
dc.publisherAMER PHYSICAL SOC
dc.relation.ispartofPHYSICAL REVIEW E
dc.subjectENERGY-LEVELS
dc.subjectPhysics
dc.subjectPhysics, Fluids & Plasmas
dc.subjectPhysics, Mathematical
dc.subjectSTATISTICAL-MECHANICS
dc.subjectSYSTEMS
dc.titleInitial-state-independent equilibration at the breakdown of the eigenstate thermalization hypothesis
dc.typejournal article
dc.identifier.doi10.1103/PhysRevE.93.042101
dc.identifier.isiISI:000373210800001
dc.description.volume93
dc.description.issue4
dc.identifier.eissn24700053
dc.publisher.placeONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
dcterms.isPartOf.abbreviationPhys. Rev. E
dcterms.oaStatusGreen Submitted
crisitem.author.netidGeJo743-
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