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Chirality in Coulomb-blockaded quantum dots

David Sanchez·Markus Buttiker
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Abstract

We investigate the two-terminal nonlinear conductance of a Coulomb-blockaded quantum dot attached to chiral edge states. Reversal of the applied magnetic field inverts the system chirality and leads to a different polarization charge. As a result, the current--voltage characteristic is not an even function of the magnetic field. We show that the corresponding magnetic-field asymmetry arises from single-charge effects and vanishes in the limit of high temperature.

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David Sanchez, Markus Buttiker. 2005-10-12. Chirality in Coulomb-blockaded quantum dots. https://doi.org/10.1103/physrevb.72.201308

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