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TT: Fachverband Tiefe Temperaturen

TT 16: Poster: Transport

TT 16.5: Poster

Montag, 27. März 2023, 15:00–18:00, P2/OG4

Full counting statistics of electron transport through periodically driven quantum dots analysed with factorial cumulants — •Johann Zöllner, Eric Kleinherbers, and Jürgen König — Theoretische Physik, Universität Duisburg-Essen, Lotharstr. 1, 47048 Duisburg

The electron transport through quantum dots is a stochastic process. Factorial cumulants of full counting statistics can be used to analyse current and current fluctuations of electrons [1]. We present methods to calculate factorial cumulants for periodically driven systems. This makes it possible to investigate effects in which a periodic drive and noise both take part. An example for such an effect is stochastic resonance, which has already been observed in quantum dots [2]. We will explain the meaning of factorial cumulants for stochastic resonance.

[1] P. Stegmann, B. Sothmann, A. Hucht, J. König, Phys. Rev. B 92, 155413 (2015)

[2] T. Wagner, P. Talkner, J. C. Bayer, E. P. Rugeramigabo, P. Hänggi, R. J. Haug, Nat. Phys. 15, 330(2019)