Dynamical scaling laws in the quantum q -state clock chain
Sign Up to like & getrecommendations! Published in 2023 at "Physical Review B"
DOI: 10.1103/physrevb.107.134303
Abstract: We show that phase transitions in the quantum $q$-state clock model for $q \leq 4$ can be characterized by an enhanced decay behavior of the Loschmidt echo via a small quench. The quantum criticality of… read more here.
Keywords: loschmidt echo; state clock; scaling laws; quantum state ... See more keywords
Monte Carlo study of duality and the Berezinskii-Kosterlitz-Thouless phase transitions of the two-dimensional q-state clock model in flow representations.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review. E"
DOI: 10.1103/physreve.106.024106
Abstract: The two-dimensional q-state clock model for q≥5 undergoes two Berezinskii-Kosterlitz-Thouless (BKT) phase transitions as temperature decreases. Here we report an extensive worm-type simulation of the square-lattice clock model for q=5-9 in a pair of flow… read more here.
Keywords: state clock; clock model; clock; flow representations ... See more keywords
Otto Engine for the q-State Clock Model
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DOI: 10.3390/e24020268
Abstract: This present work explores the performance of a thermal–magnetic engine of Otto type, considering as a working substance an effective interacting spin model corresponding to the q− state clock model. We obtain all the thermodynamic… read more here.
Keywords: clock model; state clock; engine; model ... See more keywords