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Quantum torus chain
Stockholm University, Faculty of Science, Department of Physics.
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2012 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 86, no 13, 134430- p.Article in journal (Refereed) Published
Abstract [en]

We introduce a set of one-dimensional quantum lattice models which we refer to as the quantum torus chain. These models have discrete global symmetry and projective on-site representations. They possess an integer-valued parameter which controls the presence or absence of frustration. Depending on whether this parameter is even or odd, these models exhibit either gapped symmetry-breaking phases with isolated critical points or gapped symmetry-breaking phases separated by gapless phases. We discuss the property of these phases and phase transitions for two special values of the parameter and point out many open problems.

Place, publisher, year, edition, pages
2012. Vol. 86, no 13, 134430- p.
National Category
Condensed Matter Physics
URN: urn:nbn:se:su:diva-83011DOI: 10.1103/PhysRevB.86.134430ISI: 000310259700004OAI: diva2:574507


Available from: 2012-12-05 Created: 2012-12-03 Last updated: 2012-12-05Bibliographically approved

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Ardonne, Eddy
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