Quantum-Statistical Current Correlations in Multi-Lead Chaotic Cavities

TL;DR

This paper predicts quantum statistical effects in current correlations within multi-lead chaotic quantum dots, highlighting exchange effects that are robust against dephasing and scale with the number of channels.

Contribution

It provides theoretical predictions for exchange effects in current correlations in multi-lead chaotic quantum dots, emphasizing their magnitude and insensitivity to dephasing.

Findings

Exchange effects are of the order of the channel number.

Exchange effects are insensitive to dephasing.

Ensemble-averaged exchange effects are significant.

Abstract

Quantum mechanics requires that identical particles are treated as indistinguishable. This requirement leads to correlations in the fluctuating properties of a system. Theoretical predictions are made for an experiment on a multi-lead chaotic quantum dot which can identify exchange effects in electronic current-current correlations. Interestingly, we find that the ensemble averaged exchange effects are of the order of the channel number, and are insensitive to dephasing.