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Open Quantum Systems Decoherence

Rectification induced by geometry in two-dimensional quantum spin lattices

arXiv
Authors: Alessandra Chioquetta, Emmanuel Pereira, Gabriel T. Landi, Raphael C. Drumond

Year

2020

Paper ID

18800

Status

Preprint

Abstract Read

~2 min

Abstract Words

113

Citations

N/A

Abstract

We address the role of geometrical asymmetry in the occurrence of spin rectification in two-dimensional quantum spin chains subject to two reservoirs at the boundaries, modeled by quantum master equations. We discuss the differences in the rectification for some one-dimensional cases, and present numerical results of the rectification coefficient R for different values of the anisotropy parameter of the XXZ model, and different configurations of boundary drives, including both local and non-local dissipators. Our results also show that geometrical asymmetry, along with inhomogeneous magnetic fields, can induce spin current rectification even in the XX model, indicating that the phenomenon of rectification due to geometry may be of general occurrence in quantum spin systems.

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  • We address the role of geometrical asymmetry in the occurrence of spin rectification in two-dimensional quantum spin chains subject to two reservoirs at the boundaries, modeled...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2012.01368 [2] arXiv https://arxiv.org/abs/2012.01368 [3] Publisher https://arxiv.org/abs/2012.01368

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