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arXiv · 1703.10028

Intensified antibunching via feedback-induced quantum interference

Yiping Lu·Nicolas L. Naumann·Javier Cerrillo·Qing Zhao·Andreas Knorr·Alexander Carmele
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Abstract

We numerically show that time delayed coherent feedback controls the statistical output characteristics of driven quantum emitters. Quantum feedback allows to enhance or suppress a wide range of classical and nonclassical features of the emitted quantum light. As exemplary quantum system, we use a pumped cavity containing two emitters. By applying phase-selective feedback, we demonstrate that photon antibunching and bunching can be increased in orders of magnitude due to intrinsically and externally controllabe quantum interferences. Our modelling is based on a fully non-Markovian quantum simulation of a structured photon continuum. We show that an approximative method in the Schrödinger picture allows a very good estimate for quantum feedback induced features for low pump rates.

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Yiping Lu, Nicolas L. Naumann, Javier Cerrillo, Qing Zhao, Andreas Knorr, Alexander Carmele. 2017-03-29. Intensified antibunching via feedback-induced quantum interference. https://doi.org/10.1103/physreva.95.063840

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