Regensburg 2013 – scientific programme
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HL: Fachverband Halbleiterphysik
HL 91: Poster Session: Quantum dots and wires: preparation & characterization & optical properties & transport properties
HL 91.24: Poster
Thursday, March 14, 2013, 16:00–20:00, Poster A
Single-photon time-delayed feedback: a way to stabilize intrinsic quantum cavity electrodynamics — •Franz Schulze1, Alexander Carmele1, Julia Kabuss1, Stephan Reitzenstein2, and Andreas Knorr1 — 1Institut für Theoretische Physik, Nichtlineare Optik und Quantenelektronik, Technische Universität Berlin, Germany — 2Institut für Festkörperphysik, Optoelektronik und Quantenbauelemente, Technische Universität Berlin, Germany
The control of non-classical photon states is of great importance in quantum information science and can be addressed, for example, by extrinsic [1] and intrinsic methods.
We apply an intrinsic control scheme to cavity quantum electrodynamics (cQED) by utilizing quantum optical time-delayed self-feedback in the single-photon limit.
In particular, we investigate theoretically how a single-emitter cavity system, operating initially in the weak coupling regime, is driven into the strong-coupling regime by introducing time-delayed optical self-feedback via an external mirror.
This peculiar transition from weak to strong coupling manifests in Rabi oscillations, which start to emerge in the coupled cavity field dynamics.
Our method treats the correlation between the external and the internal cavity photon field on a non-Markovian level. This quantum optical approach to time-delayed self-feedback opens new ways to experimentally control features of cQED in the single-photon limit.
X. Zhou et al., Phys. Rev. Lett. 108, 243602 (2012)