Symmetry and environment effects on rectification mechanisms in quantum pumps
Liliana Arrachea
TL;DR
This paper investigates how symmetry and environmental factors influence rectification in quantum pumps, highlighting the role of environment in breaking time-reversal symmetry and enabling directed currents.
Contribution
It introduces a symmetry analysis framework for quantum pumps and explores environmental effects on rectification and current generation.
Findings
Environment can break time-reversal symmetry in quantum pumps.
Finite directed current possible even in Hamiltonian limit.
Symmetry considerations crucial for rectification mechanisms.
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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