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dc.contributor.authorZhu, Zheng
dc.contributor.authorWeng, Zheng-Yu
dc.contributor.authorHo, Tin-Lun
dc.date.accessioned2016-03-15T01:35:46Z
dc.date.available2016-03-15T01:35:46Z
dc.date.issued2016-03
dc.date.submitted2015-10
dc.identifier.issn2469-9926
dc.identifier.issn2469-9934
dc.identifier.urihttp://hdl.handle.net/1721.1/101710
dc.description.abstractWe show that pronounced modulations in spin and charge densities can be induced by the insertion of a single hole in an otherwise half-filled two-leg Hubbard ladder. Accompanied with these modulations is a loosely bound structure of the doped charge with a spin-1/2, in contrast to the tightly bound case where such modulations are absent. These behaviors are caused by the interference of the Berry phases associated with a string of flipped spins (or “phase strings”) left behind as a hole travels through a spin bath with a short-range antiferromagnetic order. The key role of the phase strings is also reflected in how the system responds to increasing spin polarization and the on-site repulsion, addition of a second hole, and increasing asymmetry between intra- and interchain hopping. Remarkably, all these properties persist down to ladders as short as ∼10 sites, as the smoking gun of the phase-string effect. They can therefore be studied in cold-atom experiments using the recently developed fermion microscope.en_US
dc.description.sponsorshipNational Burn Repository of China (Grant 2015CB921000)en_US
dc.description.sponsorshipNational Natural Science Foundation (China) (Grant 11534007)en_US
dc.publisherAmerican Physical Societyen_US
dc.relation.isversionofhttp://dx.doi.org/10.1103/PhysRevA.93.033614en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceAmerican Physical Societyen_US
dc.titleSpin and charge modulations in a single-hole-doped Hubbard ladder: Verification with optical lattice experimentsen_US
dc.typeArticleen_US
dc.identifier.citationZhu, Zheng, Zheng-Yu Weng, and Tin-Lun Ho. “Spin and Charge Modulations in a Single-Hole-Doped Hubbard Ladder: Verification with Optical Lattice Experiments.” Physical Review A 93, no. 3 (March 7, 2016). © 2016 American Physical Societyen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Physicsen_US
dc.contributor.mitauthorZhu, Zhengen_US
dc.relation.journalPhysical Review Aen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dc.date.updated2016-03-07T23:00:06Z
dc.language.rfc3066en
dc.rights.holderAmerican Physical Society
dspace.orderedauthorsZhu, Zheng; Weng, Zheng-Yu; Ho, Tin-Lunen_US
mit.licensePUBLISHER_POLICYen_US


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