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arXiv · 1503.05722

Analytical Study of Quantum Feedback Enhanced Rabi Oscillations

Julia Kabuss·Dmitry O. Krimer·Stefan Rotter·Kai Stannigel·Andreas Knorr·Alexander Carmele
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Abstract

We present an analytical solution of the single photon quantum feedback in a cavity quantum electrodynamics system based on a half cavity set-up coupled to a structured continuum. The exact analytical expression we obtain allows us to discuss in detail under which conditions a single emitter-cavity system, which is initially in the weak coupling regime, can be driven into the strong coupling regime via the proposed quantum feedback mechanism [Carmele et al, Phys.Rev.Lett. 110, 013601]. Our results reveal that the feedback induced oscillations rely on a well-defined relationship between the delay time and the atom-light coupling strength of the emitter. At these specific values the leakage into the continuum is prevented by a destructive interference effect, which pushes the emitter to the strong coupling limit.

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Julia Kabuss, Dmitry O. Krimer, Stefan Rotter, Kai Stannigel, Andreas Knorr, Alexander Carmele. 2015-03-19. Analytical Study of Quantum Feedback Enhanced Rabi Oscillations. https://doi.org/10.1103/physreva.92.053801

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