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DY: Fachverband Dynamik und Statistische Physik

DY 3: Poster Sesssion I: Quantum Chaos and Many-Body Quantum Dynamics

DY 3.6: Poster

Dienstag, 28. September 2021, 17:30–19:30, P

Quantum dynamics and thermodynamics in nanosystems with strong electronic-vibrational coupling under external driving — •Jakob Bätge¹, Wenjie Dou², Amikam Levy³, and Michael Thoss¹ — ¹Institute of Physics, University of Freiburg, Freiburg, Germany — ²School of Science, Westlake University, Hangzhou, China — ³Department of Chemistry, Bar-Ilan University, Ramat-Gan, Israel

The development and optimization of quantum devices increase 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 time-dependent driven nanosystem with interacting electronic and vibrational degrees of freedom utilizing the numerically exact hierarchical equations of motion approach for multiple fermionic and bosonic environments [1]. We analyze the role of vibrations in the electronic friction induced by electronic-vibrational coupling and identify the adiabatic and nonadiabatic contributions to thermodynamic quantities[2].

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

[2] W. Dou et al., Phys. Rev. B 101, 184304 (2020)