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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- (författare)
- Umeå universitet,Institutionen för fysik,Statistisk fysik
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- Bernhardsson, Sebastian (författare)
- Umeå universitet,Institutionen för fysik,Statistisk fysik
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Kim, Beom Jun (författare)
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(creator_code:org_t)
- Singapore : World Scientific, 2009
- 2009
- Engelska.
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Ingår i: International Journal of Modern Physics B. - Singapore : World Scientific. - 0217-9792. ; 23:20-21, s. 3939-3950
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The 2D Fully Frustrated XY(FFXY) class of models is shown to contain a new groundstate in addition to the checkerboard groundstate of the standard 2D XY model. The spin configuration of this additional groundstate is obtained and its connection to a broken Z2-symmetry explained. This means that the class of 2D FFXY models belongs within a U(1) ⊗ Z2 ⊗ Z2-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 FFXY-model.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- phase transitions
- Condensed matter physics
- Kondenserade materiens fysik
- fysik
- Physics
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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