Emergent Chiral Spin State in the Mott Phase of a Bosonic Kane-Mele-Hubbard Model

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dc.citation.issue15
dc.citation.rankM21a
dc.citation.spage157201
dc.citation.volume120
dc.contributor.authorPlekhanov, Kirill
dc.contributor.authorVasić, Ivana
dc.contributor.authorPetrescu, Alexandru
dc.contributor.authorNirwan, Rajbir
dc.contributor.authorRoux, Guillaume
dc.contributor.authorHofstetter, Walter
dc.contributor.authorLe Hur, Karyn
dc.date.accessioned2024-07-03T07:46:24Z
dc.date.available2024-07-03T07:46:24Z
dc.date.issued2018-04-10
dc.description.abstractRecently, the frustrated XY model for spins 1/2 on the honeycomb lattice has attracted a lot of attention in relation with the possibility to realize a chiral spin liquid state. This model is relevant to the physics of some quantum magnets. Using the flexibility of ultracold atom setups, we propose an alternative way to realize this model through the Mott regime of the bosonic Kane-Mele-Hubbard model. The phase diagram of this model is derived using bosonic dynamical mean-field theory. Focusing on the Mott phase, we investigate its magnetic properties as a function of frustration. We do find an emergent chiral spin state in the intermediate frustration regime. Using exact diagonalization we study more closely the physics of the effective frustrated XY model and the properties of the chiral spin state. This gapped phase displays a chiral order, breaking time-reversal and parity symmetry, but is not topologically ordered (the Chern number is zero).
dc.identifier.doi10.1103/physrevlett.120.157201
dc.identifier.issn0031-9007
dc.identifier.issn1079-7114
dc.identifier.scopus2-s2.0-85045341864
dc.identifier.urihttps://pub.ipb.ac.rs/handle/123456789/172
dc.identifier.wos000429530500009
dc.language.isoen
dc.publisherAmerican Physical Society
dc.relation.ispartofPhysical Review Letters
dc.relation.ispartofabbrPhys. Rev. Lett.
dc.rightsrestrictedAccess
dc.titleEmergent Chiral Spin State in the Mott Phase of a Bosonic Kane-Mele-Hubbard Model
dc.typeArticle
dc.type.versionpublishedVersion
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