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Article: Global phase diagram of three-dimensional extended Boson Hubbard model: A continuous-time quantum Monte Carlo study

TitleGlobal phase diagram of three-dimensional extended Boson Hubbard model: A continuous-time quantum Monte Carlo study
Authors
Issue Date2011
PublisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/
Citation
Physical Review B - Condensed Matter And Materials Physics, 2011, v. 84 n. 5 How to Cite?
AbstractWe present the global phase diagram of the extended boson Hubbard model on a simple cubic lattice by quantum Monte Carlo simulation with the worm update algorithm. Four kinds of phases are supported by this model, including superfluid, supersolid, Mott, and charge density wave (CDW) states, which are identified in the phase diagram of chemical potential μ versus nearest-neighbor interaction V. By changing the chemical potential, a continuous transition is found from the Mott phase to a superfluid phase without breaking the translational symmetry. For an insulating CDW state, adding particles to it gives rise to a continuous transition to a supersolid phase, while removing particles usually leads to a first-order transition to either a supersolid or superfluid phase. By tuning the nearest-neighbor interaction, one can realize the transition between two insulating phases, Mott and CDW, with the same particle density, which turns out to be first order. We also confirm the result in Phys. Rev. B 79, 094503 (2009) that a supersolid phase with average particle density less than 1/2 can exist in a small region of the μ-V phase diagram. © 2011 American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/139659
ISSN
2014 Impact Factor: 3.736
2015 SCImago Journal Rankings: 1.933
ISI Accession Number ID
Funding AgencyGrant Number
NSFC10904081
10934008
90922033
HKSAR RGCHKU 701009
Chinese Academy of Sciences
Funding Information:

We acknowledge the helpful discussions with M. Ma. This work is supported by NSFC Grants No. 10904081, No. 10934008, and No. 90922033, HKSAR RGC Grant No. HKU 701009, and the Chinese Academy of Sciences.

References

 

DC FieldValueLanguage
dc.contributor.authorXi, Ben_HK
dc.contributor.authorYe, Fen_HK
dc.contributor.authorChen, Wen_HK
dc.contributor.authorZhang, Fen_HK
dc.contributor.authorSu, Gen_HK
dc.date.accessioned2011-09-23T05:53:00Z-
dc.date.available2011-09-23T05:53:00Z-
dc.date.issued2011en_HK
dc.identifier.citationPhysical Review B - Condensed Matter And Materials Physics, 2011, v. 84 n. 5en_HK
dc.identifier.issn1098-0121en_HK
dc.identifier.urihttp://hdl.handle.net/10722/139659-
dc.description.abstractWe present the global phase diagram of the extended boson Hubbard model on a simple cubic lattice by quantum Monte Carlo simulation with the worm update algorithm. Four kinds of phases are supported by this model, including superfluid, supersolid, Mott, and charge density wave (CDW) states, which are identified in the phase diagram of chemical potential μ versus nearest-neighbor interaction V. By changing the chemical potential, a continuous transition is found from the Mott phase to a superfluid phase without breaking the translational symmetry. For an insulating CDW state, adding particles to it gives rise to a continuous transition to a supersolid phase, while removing particles usually leads to a first-order transition to either a supersolid or superfluid phase. By tuning the nearest-neighbor interaction, one can realize the transition between two insulating phases, Mott and CDW, with the same particle density, which turns out to be first order. We also confirm the result in Phys. Rev. B 79, 094503 (2009) that a supersolid phase with average particle density less than 1/2 can exist in a small region of the μ-V phase diagram. © 2011 American Physical Society.en_HK
dc.languageengen_US
dc.publisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/en_HK
dc.relation.ispartofPhysical Review B - Condensed Matter and Materials Physicsen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong Licenseen_US
dc.rightsPhysical Review B (Condensed Matter and Materials Physics). Copyright © American Physical Society.-
dc.titleGlobal phase diagram of three-dimensional extended Boson Hubbard model: A continuous-time quantum Monte Carlo studyen_HK
dc.typeArticleen_HK
dc.identifier.emailChen, W: wqchen@hku.hken_HK
dc.identifier.emailZhang, F: fuchun@hkucc.hku.hken_HK
dc.identifier.authorityChen, W=rp00673en_HK
dc.identifier.authorityZhang, F=rp00840en_HK
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1103/PhysRevB.84.054512en_HK
dc.identifier.scopuseid_2-s2.0-80052364550en_HK
dc.identifier.hkuros195704en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-80052364550&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume84en_HK
dc.identifier.issue5en_HK
dc.identifier.spage054512-1en_US
dc.identifier.epage054512-6en_US
dc.identifier.isiWOS:000293618500011-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridXi, B=37076442300en_HK
dc.identifier.scopusauthoridYe, F=37076289900en_HK
dc.identifier.scopusauthoridChen, W=36077405600en_HK
dc.identifier.scopusauthoridZhang, F=14012468800en_HK
dc.identifier.scopusauthoridSu, G=7201359400en_HK

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