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The groundstates an...
The groundstates and phases of the two-dimensional fully frustrated XY model
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- Minnhagen, Petter, 1946- (author)
- Umeå universitet,Institutionen för fysik,Statistisk fysik
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- Bernhardsson, Sebastian (author)
- Umeå universitet,Institutionen för fysik,Statistisk fysik
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Kim, Beom Jun (author)
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(creator_code:org_t)
- 2012-01-26
- 2010
- English.
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In: CONDENSED MATTER THEORIES, VOL 24. - : WORLD SCIENTIFIC. ; , s. 3-14
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- The 2D Fully Frustrated NY(FFXY) class of models is shown to contain a new ground-state in addition to the checkerboard groundstate of the standard 2D NY model. The spin configuration of this additional groundstate is obtained and its connection to a broken Z(2)-symmetry explained. This means that the class of 2D FEXY models belongs within a U(1) circle times Z(2) circle times Z(2)-symmetry phase-transition representation. The phase diagram is reviewed and the central charges of the four multicritical points described. The implications for the standard 2D FFXY-model are discussed and elucidated, in particular with respect to the long standing controversy concerning the phase transitions of the standard 2D FEXY-model.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Publication and Content Type
- ref (subject category)
- kon (subject category)
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