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arXiv · 1201.6323

Bunching and anti-bunching in electronic transport

Clive Emary·Christina Pöltl·Alexander Carmele·Julia Kabuss·Andreas Knorr·Tobias Brandes
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Abstract

In quantum optics the $g^{(2)}$-function is a standard tool to investigate photon emission statistics. We define a $g^{(2)}$-function for electronic transport and use it to investigate the bunching and anti-bunching of electron currents. Importantly, we show that super-Poissonian electron statistics do not necessarily imply electron bunching, and that sub-Poissonian statistics do not imply anti-bunching. We discuss the information contained in $g^{(2)}(\tau)$ for several typical examples of transport through nano-structures such as few-level quantum dots.

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Clive Emary, Christina Pöltl, Alexander Carmele, Julia Kabuss, Andreas Knorr, Tobias Brandes. 2012-01-30. Bunching and anti-bunching in electronic transport. https://doi.org/10.1103/physrevb.85.165417

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