Dissipation-induced mobility and coherence in frustrated lattices

Edmund Thomas Owen; Oliver T. Brown; Michael J Hartmann

doi:10.1103/PhysRevA.95.063851

Dissipation-induced mobility and coherence in frustrated lattices

Edmund Thomas Owen, Oliver T. Brown, Michael J Hartmann

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3 Citations (Scopus)

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Abstract

In quantum lattice systems with geometric frustration, particles cannot move coherently due to destructive interference between tunneling processes. Here we show that purely local, Markovian dissipation can induce mobility and long-range first-order coherence in frustrated lattice systems that is entirely generated by incoherent processes. Interactions reduce the coherences and mobility but do not destroy them. These effects are observable in experimental implementations of driven-dissipative lattices with a flat band and nonuniform dissipation.

Original language	English
Article number	063851
Journal	Physical Review A
Volume	95
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevA.95.063851
Publication status	Published - 30 Jun 2017

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title = "Dissipation-induced mobility and coherence in frustrated lattices",

abstract = "In quantum lattice systems with geometric frustration, particles cannot move coherently due to destructive interference between tunneling processes. Here we show that purely local, Markovian dissipation can induce mobility and long-range first-order coherence in frustrated lattice systems that is entirely generated by incoherent processes. Interactions reduce the coherences and mobility but do not destroy them. These effects are observable in experimental implementations of driven-dissipative lattices with a flat band and nonuniform dissipation.",

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AB - In quantum lattice systems with geometric frustration, particles cannot move coherently due to destructive interference between tunneling processes. Here we show that purely local, Markovian dissipation can induce mobility and long-range first-order coherence in frustrated lattice systems that is entirely generated by incoherent processes. Interactions reduce the coherences and mobility but do not destroy them. These effects are observable in experimental implementations of driven-dissipative lattices with a flat band and nonuniform dissipation.

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Dissipation-induced mobility and coherence in frustrated lattices

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