Quantum 2025 – wissenschaftliches Programm

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FRI: Friday Contributed Sessions

FRI 12: Quantum Phenomena in Solid-State Devices

FRI 12.6: Vortrag

Freitag, 12. September 2025, 12:00–12:15, ZHG105

Hybrid optomechanics with double quantum dots — •Victor Ceban — Institute of Applied Physics, Moldova State University, Chisinau, Moldova

The quantum dynamics of a hybrid optomechanical device made of a double quantum dot (DQD) interacting with phonons and photons had been investigated. The system dynamics is solved for the cases when one bosonic field is multi-mode and the other is single-mode. The contribution of the multi-mode field is treated via the reservoir theory, within the Born and Markov approximations, and a set of corresponding damping terms are introduced into the master equation which describes the system dynamics. The behaviour of different optomechanical devices can be described via the proposed model where the single-mode field describes either photons in an optical cavity or phonons in a nanomechanical resonator, while the contribution of the multi-mode field is given by the electromagnetic vacuum or a thermal phonon bath. Here we present the effect of the environmental (phonon/photon) reservoir on the single-mode (photon/phonon) field due to the interaction with the DQD.

Keywords: Double-Quantum-Dots; Optomechanics; Open Quantum Systems