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Title:

Quantum phases of two-dimensional Z2 gauge theory coupled to single-component fermion matter

Document type:
Zeitschriftenaufsatz
Author(s):
Borla, Umberto; Jeevanesan, Bhilahari; Pollmann, Frank; Moroz, Sergej
Abstract:
We investigate the rich quantum phase diagram of Wegner's theory of discrete Ising gauge fields interacting with U(1) symmetric single-component fermion matter hopping on a two-dimensional square lattice. In particular limits, the model reduces to (i) pure Z2 even and odd gauge theories, (ii) free fermions in a static background of deconfined Z2 gauge fields, and (iii) the kinetic Rokhsar-Kivelson quantum dimer model at a generic dimer filling. We develop a local transformation that maps the lat...     »
Journal title:
Physical Review B 2022-02
Year:
2022
Journal volume:
105
Journal issue:
7
Fulltext / DOI:
doi:10.1103/physrevb.105.075132
Publisher:
American Physical Society (APS)
E-ISSN:
2469-99502469-9969
Date of publication:
16.02.2022
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