Current noise in a irradiated point contact

Y. Levinson; P. Woelfle

doi:10.1103/physrevlett.83.1399

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Current noise in a irradiated point contact

Y. Levinson·P. Woelfle

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Abstract

We propose a new approach to calculate current and current correlations in a ballistic quantum point contact interacting with a classical field. The approach is based on the concept of scattering states for a time dependent Hamiltonian neglecting electron-electron interaction. Using this approach we calculated the spectra of the current noise in a biased point contact irradiated by a weak random field. For typical radiation frequencies νless than the temperature T and the bias voltage V we find a narrow peak of width νon top of a broad background of width \max (T,eV).

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Y. Levinson, P. Woelfle. 1999-06-06. Current noise in a irradiated point contact. https://doi.org/10.1103/physrevlett.83.1399

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