Session 6

[ICNN7-04] Probing Coherent Optical Response of Coupled Excitons and Spin States in a Quantum Dot Molecule

*Michelle Lienhart¹, Christopher Thalacker¹, Frederick Bopp¹, Nikolai Bart³, Johannes Schall⁵, Charlotte Cullip¹, Katarina Boos², Friedrich Sbresny², Andreas Wieck³, Arne Ludwig³, Dirk Reuter⁴, Sven Rodt⁵, Stephan Reitzenstein⁵, Kai Müller², Jonathan Finley¹ (1. Walter Schottky Institute, TUM School of Natural Sciences, Technical University of Munich, 2. TUM School of Computation, Information, and Technology, Technical University of Munich, 3. Faculty of Physics and Astronomy, Ruhr-University Bochum, 4. Department of Physics, Paderborn University, 5. Institute of Solid-State Physics, Technical University of Berlin)

We explore the coherent response of spatially direct and indirect excitons to a pulsed Rabi drive in a quantum dot molecule. State population is detected off-resonantly via phonon-mediated state transfer. We show that the phonon-mediated relaxation from antibonding to bonding coupled orbitals is spin conserving with a fidelity of >94%.