Regensburg 2022 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 29: Transport: Poster Session

TT 29.12: Poster

Donnerstag, 8. September 2022, 15:00–18:00, P1

Full counting statistics in periodically driven systems — •Johann Zöllner, Eric Kleinherbers, and Jürgen König — Theoretische Physik, Universität Duisburg-Essen and CENIDE, Lotharstr. 1, 47048 Duisburg

By calculating the full counting statistics of tunnelling electrons one can obtain information about quantum dot systems. We focus on the factorial cumulants [1] of the full counting statistics in periodically driven systems, which can be calculated using Floquet theory [2]. Higher-order factorial cumulants show signatures that can not be observed in the tunnelling current. To obtain analytical expressions we use the adiabatic approximation for small frequencies or the Magnus expansion for large frequencies. For the adiabatic limit we observe frequency-doubling in all factorial cumulants.

[1] P. Stegmann et al., Phys. Rev. B 92, 155413 (2015)

[2] E. Potanina et al., Phys. Rev. B 99, 035437 (2019)