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Article: Influence of the trap shape on the detection of the superfluid-Mott- insulator transition

TitleInfluence of the trap shape on the detection of the superfluid-Mott- insulator transition
Authors
Issue Date2008
PublisherAmerican Physical Society. The Journal's web site is located at http://pra.aps.org
Citation
Physical Review A - Atomic, Molecular, And Optical Physics, 2008, v. 78 n. 2 How to Cite?
AbstractThe coexistence of superfluid and Mott insulator, due to the quadratic confinement potential in current optical lattice experiments, makes the accurate detection of the superfluid-Mott-insulator transition difficult. Studying alternative trapping potentials which are experimentally realizable and have a flatter center, we find that the transition can be better resolved, but at the cost of a more difficult tuning of the particle filling. When mapping out the phase diagram using local probes and the local density approximation we find that the smoother gradient of the parabolic trap is advantageous. © 2008 The American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/59587
ISSN
2014 Impact Factor: 2.808
2015 SCImago Journal Rankings: 1.418
ISI Accession Number ID
Funding AgencyGrant Number
RGC of HKSAR
Swiss National Science Foundation
Funding Information:

The ALPS libraries [18] were used for parallelization and the simulations were performed on the Hreidar cluster of ETH Zurich. We thank W. Q. Chen, I. B. Spielman, N. V. Prokof'ev, Henning Moritz, and Tilman Esslinger for useful discussions. We welcome financial support from RGC of HKSAR and the Swiss National Science Foundation.

References

 

DC FieldValueLanguage
dc.contributor.authorMa, PNen_HK
dc.contributor.authorYang, KYuen_HK
dc.contributor.authorPollet, Len_HK
dc.contributor.authorPorto, JVen_HK
dc.contributor.authorTroyer, Men_HK
dc.contributor.authorZhang, FCen_HK
dc.date.accessioned2010-05-31T03:53:19Z-
dc.date.available2010-05-31T03:53:19Z-
dc.date.issued2008en_HK
dc.identifier.citationPhysical Review A - Atomic, Molecular, And Optical Physics, 2008, v. 78 n. 2en_HK
dc.identifier.issn1050-2947en_HK
dc.identifier.urihttp://hdl.handle.net/10722/59587-
dc.description.abstractThe coexistence of superfluid and Mott insulator, due to the quadratic confinement potential in current optical lattice experiments, makes the accurate detection of the superfluid-Mott-insulator transition difficult. Studying alternative trapping potentials which are experimentally realizable and have a flatter center, we find that the transition can be better resolved, but at the cost of a more difficult tuning of the particle filling. When mapping out the phase diagram using local probes and the local density approximation we find that the smoother gradient of the parabolic trap is advantageous. © 2008 The American Physical Society.en_HK
dc.languageengen_HK
dc.publisherAmerican Physical Society. The Journal's web site is located at http://pra.aps.orgen_HK
dc.relation.ispartofPhysical Review A - Atomic, Molecular, and Optical Physicsen_HK
dc.rightsPhysical Review A (Atomic, Molecular and Optical Physics). Copyright © American Physical Society.en_HK
dc.titleInfluence of the trap shape on the detection of the superfluid-Mott- insulator transitionen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0556-2791&volume=78&spage=023605: 1&epage=5&date=2008&atitle=Influence+of+the+trap+shape+on+the+detection+of+the+superfluid--Mott-insulator+transitionen_HK
dc.identifier.emailZhang, FC: fuchun@hkucc.hku.hken_HK
dc.identifier.authorityZhang, FC=rp00840en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1103/PhysRevA.78.023605en_HK
dc.identifier.scopuseid_2-s2.0-49249105835en_HK
dc.identifier.hkuros148526en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-49249105835&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume78en_HK
dc.identifier.issue2en_HK
dc.identifier.isiWOS:000259263500020-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridMa, PN=36840134000en_HK
dc.identifier.scopusauthoridYang, KYu=7404291063en_HK
dc.identifier.scopusauthoridPollet, L=13410469100en_HK
dc.identifier.scopusauthoridPorto, JV=7006708951en_HK
dc.identifier.scopusauthoridTroyer, M=7004750165en_HK
dc.identifier.scopusauthoridZhang, FC=14012468800en_HK

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