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dc.contributor.authorSantos, Lea F.
dc.contributor.authorRigol, Marcos
dc.identifier.citationRigol, Marcos and Santos, Lea F. (2010) Quantum chaos and thermalization in gapped systems. Physical Review A 82, 011605(R).en_US
dc.description.abstractWe investigate the onset of thermalization and quantum chaos in finite one-dimensional gapped systems of hard-core bosons. Integrability in these systems is broken by next-nearest-neighbor repulsive interactions, which also generate a superfluid to insulator transition. By employing full exact diagonalization, we study chaos indicators and few-body observables. We show that with increasing system size, chaotic behavior is seen over a broader range of parameters and, in particular, deeper into the insulating phase. Concomitantly, we observe that, as the system size increases, the eigenstate thermalization hypothesis extends its range of validity inside the insulating phase and is accompanied by the thermalization of the system.en_US
dc.publisherAmerican Physical Societyen_US
dc.relation.ispartofseriesPhysical Review A;
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 United States*
dc.subjectquantum chaosen_US
dc.subjectgapped systemsen_US
dc.titleQuantum chaos and thermalization in gapped systems.en_US

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Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 United States