The Effect of Interaction on Shot Noise in The Quantum Limit

D. B. Gutman; Yuval Gefen

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The Effect of Interaction on Shot Noise in The Quantum Limit

D. B. Gutman·Yuval Gefen

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Abstract

We employ a non-linear sigma model defined on a Keldysh contour to study the current and the current noise in a diffusive micro-bridge in the presence of electron-electron interactions. Out of equilibrium the fluctuation-dissipation theorem (FDT) does not apply, hence these two quantities are not simply interrelated. For a two-dimensional electron gas (2DEG) we obtain logarithmic singularities in the low frequency limit. PACS Nos. 71.10.Ay, 71.23.An, 73.50.Td

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D. B. Gutman, Yuval Gefen. 2001-04-23. The Effect of Interaction on Shot Noise in The Quantum Limit. https://arxiv.org/abs/cond-mat/0006468

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