Symmetry and Duality in Bosonization of Two-Dimensional Dirac Fermions

Autor: David F. Mross, Jason Alicea, Olexei I. Motrunich
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Physical Review X, Vol 7, Iss 4, p 041016 (2017)
Druh dokumentu: article
ISSN: 2160-3308
DOI: 10.1103/PhysRevX.7.041016
Popis: Recent work on a family of boson-fermion mappings has emphasized the interplay of symmetry and duality: Phases related by a particle-vortex duality of bosons (fermions) are related by time-reversal symmetry in their fermionic (bosonic) formulation. We present exact mappings for a number of concrete models that make this property explicit on the operator level. We illustrate the approach with one- and two-dimensional quantum Ising models and then similarly explore the duality web of complex bosons and Dirac fermions in (2+1) dimensions. We generalize the latter to systems with long-range interactions and discover a continuous family of dualities embedding the previously studied cases.
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