Condensed Matter Theory

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Exact axisymmetric interaction of phoretically active Janus particles

Journal of Fluid Mechanics Cambridge University Press (CUP) 905 (2020) a13

Authors:

Babak Nasouri, Ramin Golestanian
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Many-body delocalisation as symmetry breaking

(2020)

Authors:

SJ Garratt, JT Chalker
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A microscopic Ginzburg--Landau theory and singlet ordering in Sr$_2$RuO$_4$

(2020)

Authors:

Glenn Wagner, Henrik S Røising, Felix Flicker, Steven H Simon
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Josephson oscillations in split one-dimensional Bose gases

(2020)

Authors:

Yuri D van Nieuwkerk, Jörg Schmiedmayer, Fabian HL Essler
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Self-dual S3-invariant quantum chains

SciPost Physics Stichting SciPost 9:6 (2020) 88

Authors:

Edward O'Brien, Paul Fendley

Abstract:

We investigate the self-dual three-state quantum chain with nearest-neighbor interactions and S 3 , time-reversal, and parity symmetries. We find a rich phase diagram including gapped phases with order-disorder coexistence, integrable critical points with U(1) symmetry, and ferromagnetic and antiferromagnetic critical regions described by three-state Potts and free-boson conformal field theories respectively. We also find an unusual critical phase which appears to be described by combining two conformal field theories with distinct "Fermi velocities". The order-disorder coexistence phase has an emergent fractional supersymmetry, and we find lattice analogs of its generators.
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