Regensburg 2022 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 3: Statistical Physics far from Thermal Equilibrium

DY 3.9: Vortrag

Montag, 5. September 2022, 12:15–12:30, H18

Nonadiabatically driven open quantum systems under out-of-equilibrium conditions: The effect of electron-phonon interaction — •Jakob Bätge¹, Amikam Levy³, Wenjie Dou², and Michael Thoss¹ — ¹Institute of Physics, University of Freiburg, Freiburg,Germany — ²Department of Physics, School of Science, Westlake University, Hangzhou, China — ³Department of Chemistry, Bar-Ilan University, Ramat-Gan, Israel

The development and optimization of quantum devices have increased the interest in dynamics and thermodynamics of systems on the scale of single atoms and molecules. In this contribution, we investigate the nonequilibrium quantum dynamics of a driven nanosystem with two different approaches. By comparing results from the numerically exact hierarchical equations of motion method [1] and a Markovian quantum master equation [2], we analyze non-Markovian effects in the system dynamics. Furthermore, we discuss nonadiabatic effects in thermodynamic quantities induced by electronic-vibrational coupling.

[1] J. Bätge et al., Phys. Rev. B 103, 235413 (2021)

[2] R. Dann et al., Phys. Rev. A 98, 052129 (2018)