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arXiv · 0907.3003

Violation of Onsager symmetry for a ballistic channel Coulomb coupled to a quantum ring

B. Szafran·M. R. Poniedzialek·F. M. Peeters
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Abstract

We investigate a scattering of electron which is injected individually into an empty ballistic channel containing a cavity that is Coulomb coupled to a quantum ring charged with a single-electron. We solve the time-dependent Schrödinger equation for the electron pair with an exact account for the electron-electron correlation. Absorption of energy and angular momentum by the quantum ring is not an even function of the external magnetic field. As a consequence we find that the electron backscattering probability is asymmetric in the magnetic field and thus violates Onsager symmetry.

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B. Szafran, M. R. Poniedzialek, F. M. Peeters. 2009-07-17. Violation of Onsager symmetry for a ballistic channel Coulomb coupled to a quantum ring. https://doi.org/10.1209/0295-5075/87/47002

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