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Title: Lattice spin models for non-Abelian chiral spin liquids

Journal Article · · Physical Review. B
 [1];  [2]
  1. Univ. de Cergy-Pontoise, Cergy-Pontoise Cedex (France)
  2. 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
Citation Metrics:
Cited by: 24 works
Citation information provided by
Web of Science

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Cited By (15)

Non-Abelian chiral spin liquid in a quantum antiferromagnet revealed by an iPEPS study text January 2018
Non-Abelian chiral spin liquid on a simple non-Archimedean lattice journal January 2020
Non-Abelian chiral spin liquid on a simple non-Archimedean lattice text January 2019
Coupled-wire constructions: a Luttinger liquid approach to topology journal February 2020
Non-Abelian chiral spin liquid on a simple non-Archimedean lattice text January 2020
Spin Chain Network Construction of Chiral Spin Liquids journal September 2019
Non-Abelian chiral spin liquid in a quantum antiferromagnet revealed by an iPEPS study journal November 2018
From coupled wires to coupled layers: Model with three-dimensional fractional excitations journal June 2019
Spin chain network construction of chiral spin liquids text January 2019
Model of spin liquids with and without time-reversal symmetry text January 2018
Exact diagonalization of SU( N ) Heisenberg and Affleck-Kennedy-Lieb-Tasaki chains using the full SU( N ) symmetry journal September 2017
Coupled-wire constructions: a Luttinger liquid approach to topology text January 2019
Gapless chiral spin liquid from coupled chains on the kagome lattice journal January 2018
Model of spin liquids with and without time-reversal symmetry journal May 2019
Density matrix renormalization group simulations of SU( N ) Heisenberg chains using standard Young tableaus: Fundamental representation and comparison with a finite-size Bethe ansatz journal April 2018

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