Journal
PHYSICAL REVIEW B
Volume 97, Issue 19, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.97.195158
Keywords
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Funding
- Perimeter Institute for Theoretical Physics
- NSFC [11574392, 11574008, 11761161003, 11774306]
- Ministry of Science and Technology of China [2016YFA0300504]
- Fundamental Research Funds for the Central Universities
- Research Funds of Renmin University of China [15XNLF19]
- EU Integrated Project SIQS
- DFG through the Excellence Cluster Nanosystems Initiative Munich
- Thousand-Young-Talent Program of China
- National Key Research and Development Program of China [2016YFA0300202]
- National Basic Research Program of China [2014CB921201]
- Key Research Program of the Chinese Academy of Sciences [XDPB08-4]
- Fundamental Research Funds for the Central Universities in China
- Hong Kong Research Grant Council [HKUST3/CRF/13G]
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We study S = 1 spin liquid states on the kagome lattice constructed by Gutzwiller-projected p(x)+ip(y superconductors. We show that the obtained spin liquids are either non-Abelian or Abelian )topological phases, depending on the topology of the fermionic mean-field state. By calculating the modular matrices S and T, we confirm that projected topological superconductors are non-Abelian chiral spin liquid (NACSL). The chiral central charge and the spin Hall conductance we obtained agree very well with the SO(3)(1) (or, equivalently, SU(2)(2)) field-theory predictions. We propose a local Hamiltonian which may stabilize the NACSL. From a variational study, we observe a topological phase transition from the NACSL to the Z(2) Abelian spin liquid.
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