Multi-particle correlations of an oscillating scatterer

TL;DR

This paper analyzes multi-particle correlations in a noninteracting electron system driven by a periodic scatterer, revealing how large amplitude pumps generate complex correlations beyond two-particle interactions.

Contribution

It provides a theoretical framework for calculating multi-particle correlations induced by a periodically driven scatterer using photon-assisted scattering amplitudes.

Findings

Zero-frequency noise power relates to two-particle correlations.

Large amplitude pumps generate multi-particle correlations.

Results are valid for slow, arbitrary-strength driving.

Abstract

Using multi-particle distribution functions we calculate the correlations produced by a periodically driven scatterer in a system of noninteracting electrons at zero temperature. The multi-particle correlations due to a quantum exchange effect are expressed in terms of photon-assisted scattering amplitudes. The results we obtain are valid for slow but arbitrary in strength driving. We show that even for large amplitude pumps the zero-frequency noise power is related to two-particle correlations. In addition to two-particle correlations a large amplitude pump can generate multi-particle correlations.