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Abstract: We study nonequilibrium dephasing in an electronic Mach-Zehnderinterferometer. We demonstrate that the shot noise at the beam splitter of theinterferometer generates an ensemble of nonequilibrium electron densityconfigurations and that electron interactions induce configuration-specificphase shifts of an interfering electron. The resulting dephasing exhibits twocharacteristic features, a lobe pattern in the visibility and phase jumps of$\pi$, in good agreement with experimental data.



Autor: Seok-Chan Youn, Hyun-Woo Lee, H.-S. Sim

Fuente: https://arxiv.org/







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