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Symmetry and environment effects on rectification mechanisms in quantum pumps

Liliana Arrachea
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Abstract

We consider a paradigmatic model of quantum pumps and discuss its rectification properties in the framework of a symmetry analysis proposed for ratchet systems. We discuss the role of the environment in breaking time-reversal symmetry and the possibility of a finite directed current in the Hamiltonian limit of annular systems.

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Liliana Arrachea. 2005-09-06. Symmetry and environment effects on rectification mechanisms in quantum pumps. https://doi.org/10.1103/physrevb.72.121306

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