Lattice spin models for non-Abelian chiral spin liquids
Journal Article
·
· Physical Review. B
- Univ. de Cergy-Pontoise, Cergy-Pontoise Cedex (France)
- Brookhaven National Lab. (BNL), Upton, NY (United States)
Here, we suggest a class of two-dimensional lattice spin Hamiltonians describing non-Abelian SU(2) chiral spin liquids—spin analogs of fractional non-Abelian quantum Hall states—with gapped bulk and gapless chiral edge excitations described by the SU(2)n Wess-Zumino-Novikov-Witten conformal field theory. The models are constructed from an array of generalized spin-n/2 ladders with multi-spin-exchange interactions which are coupled by isolated spins. Such models allow a controllable analytic treatment starting from the one-dimensional limit and are characterized by a bulk gap and non-Abelian SU(2)n gapless edge excitations.
- Research Organization:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC00112704; AC02-98CH10886
- OSTI ID:
- 1357956
- Alternate ID(s):
- OSTI ID: 1353279
- Report Number(s):
- BNL-113800-2017-JA; PRBMDO; R&D Project: PO015; KC0202030; TRN: US1702616
- Journal Information:
- Physical Review. B, Vol. 95, Issue 14; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 24 works
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