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DCフィールド | 値 | 言語 |
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dc.contributor.author | Nakata, Kouki | en |
dc.contributor.author | Totsuka, Keisuke | en |
dc.contributor.alternative | 仲田, 光樹 | ja |
dc.date.accessioned | 2011-03-04T06:40:52Z | - |
dc.date.available | 2011-03-04T06:40:52Z | - |
dc.date.issued | 2011-01 | - |
dc.identifier.issn | 1742-5468 | - |
dc.identifier.uri | http://hdl.handle.net/2433/138090 | - |
dc.description.abstract | We extend the quantum dimer model (QDM) introduced by Rokhsar and Kivelson so as to construct a concrete example of the model which exhibits the first-order phase transition between different valence-bond solids suggested recently by Batista and Trugman and look for the possibility of other exotic dimer states. We show that our model contains three exotic valence-bond phases (herringbone, checkerboard and dimer smectic) in the ground-state phase diagram and that it realizes the phase transition from the staggered valence-bond solid to the herringbone. The checkerboard phase has four-fold rotational symmetry, while the dimer smectic, in the absence of quantum fluctuations, has massive degeneracy originating from partial ordering only in one of the two spatial directions. A resonance process involving three dimers resolves this massive degeneracy and the dimer smectic becomes ordered (order from disorder). | en |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | IOP Publishing Ltd and SISSA | en |
dc.rights | © IOP Publishing 2011 | en |
dc.rights | This is not the published version. Please cite only the published version. | en |
dc.rights | この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 | ja |
dc.subject | dimers (theory) | en |
dc.subject | phase diagrams (theory) | en |
dc.subject | quantum phase transitions (theory) | en |
dc.title | Extended quantum dimer model and novel valence-bond phases | en |
dc.type | journal article | - |
dc.type.niitype | Journal Article | - |
dc.identifier.ncid | AA1247224X | - |
dc.identifier.jtitle | Journal of Statistical Mechanics: Theory and Experiment | en |
dc.identifier.volume | 2011 | - |
dc.identifier.issue | 01 | - |
dc.relation.doi | 10.1088/1742-5468/2011/01/P01033 | - |
dc.textversion | author | - |
dc.identifier.artnum | P01033 | - |
dcterms.accessRights | open access | - |
出現コレクション: | 学術雑誌掲載論文等 |
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