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dc.contributor.authorLan, Zhihao
dc.contributor.authorPowell, Stephen
dc.date.accessioned2017-09-21T15:31:19Z
dc.date.available2017-09-21T15:31:19Z
dc.date.issued2017-09-21
dc.identifier.urihttps://rdmc.nottingham.ac.uk/handle/internal/331
dc.identifier.urihttp://dx.doi.org/10.17639/nott.327
dc.description.abstractWe use exact diagonalization to study the eigenstate thermalization hypothesis (ETH) in the quantum dimer model on the square and triangular lattices. Due to the nonergodicity of the local plaquette-flip dynamics, the Hilbert space, which consists of highly constrained close-packed dimer configurations, splits into sectors characterized by topological invariants. We show that this has important consequences for ETH: We find that ETH is clearly satisfied only when each topological sector is treated separately, and only for moderate ratios of the potential and kinetic terms in the Hamiltonian. By contrast, when the spectrum is treated as a whole, ETH breaks down on the square lattice and, apparently, also on the triangular lattice. These results demonstrate that quantum dimer models have interesting thermalization dynamics. The deposited data are exact diagonalization results for the expectation values of several local observables in the energy eigenstates.en_UK
dc.language.isoenen_UK
dc.publisherUniversity of Nottinghamen_UK
dc.subject.lcshThermodynamicsen_UK
dc.subject.lcshQuantum systemsen_UK
dc.subject.lcshDimersen_UK
dc.subject.lcshErgodic theoryen_UK
dc.subject.lcshEigenvaluesen_UK
dc.titleEigenstate thermalization hypothesis in quantum dimer modelsen_UK
dc.identifier.doi10.1103/PhysRevB.96.115140en_UK
dc.subject.freeeigenstate thermalization hypothesis; quantum dimer models; exact diagonalizationen_UK
dc.subject.jacsPhysical sciences::Physics::Mathematical & theoretical physicsen_UK
dc.subject.lcQ Science::QC Physics::QC170 Atomic physics. Constitution and properties of matteren_UK
dc.date.collection05.2016-04.2017en_UK
uon.divisionUniversity of Nottingham, UK Campus::Faculty of Science::School of Physics and Astronomyen_UK
uon.funder.controlledEngineering & Physical Sciences Research Councilen_UK
uon.datatypeResults of exactly diagonalizing quantum dimer models on square and triangular latticesen_UK
uon.grantEP/M019691/1en_UK
uon.collectionmethodnumerical exact diagonalizationen_UK
uon.rightscontactUniversity of Nottinghamen_UK
uon.preservation.rarelyaccessedtrue


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