Roy, Abhishek and Quella, Thomas ORCID: 0000-0002-5441-4124 (2018). Chiral Haldane phases of SU(N) quantum spin chains. Phys. Rev. B, 97 (15). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2469-9969
Full text not available from this repository.Abstract
Gapped quantum spin chains with symmetry PSU(N) = SU(N)/Z(N) are known to possess N distinct symmetry protected topological phases. Besides the trivial phase, there are N - 1 Haldane phases which are distinguished by the occurrence of massless boundary spins. We give an expression for a universal AKLT Hamiltonian for an arbitrary symmetry group, including the case where inversion symmetry is broken. Using a diagrammatic method, we construct Hamiltonians for two of the topological classes in SU(N) that arise when the physical spin is in the adjoint representation. Since our results are valid for all N, we also discuss the large-N limit.
Item Type: | Journal Article | ||||||||||||
Creators: |
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URN: | urn:nbn:de:hbz:38-189122 | ||||||||||||
DOI: | 10.1103/PhysRevB.97.155148 | ||||||||||||
Journal or Publication Title: | Phys. Rev. B | ||||||||||||
Volume: | 97 | ||||||||||||
Number: | 15 | ||||||||||||
Date: | 2018 | ||||||||||||
Publisher: | AMER PHYSICAL SOC | ||||||||||||
Place of Publication: | COLLEGE PK | ||||||||||||
ISSN: | 2469-9969 | ||||||||||||
Language: | English | ||||||||||||
Faculty: | Unspecified | ||||||||||||
Divisions: | Unspecified | ||||||||||||
Subjects: | no entry | ||||||||||||
Uncontrolled Keywords: |
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Refereed: | Yes | ||||||||||||
URI: | http://kups.ub.uni-koeln.de/id/eprint/18912 |
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