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arXiv · 1706.05273

Quantum cascade driving: Dissipatively mediated coherences

Shahabedin C. Azizabadi·Nicolas L. Naumann·Manuel Katzer·Andreas Knorr·Alexander Carmele
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Abstract

Quantum cascaded systems offer the possibility to manipulate a target system with the quantum state of a source system. Here, we study in detail the differences between a direct quantum cascade and coherent/incoherent driving for the case of two coupled cavity-QED systems. We discuss qualitative differences between these excitations scenarios, which are particular strong for higher-order photon-photon correlations: $g^{(n)}(0)$ with $ n>2 $. Quantum cascaded systems show a behavior differing from the idealized cases of individual coherent/incoherent driving and allow to produce qualitatively different quantum statistics. Furthermore, the quantum cascaded driving exhibits an interesting mixture of quantum coherent and incoherent excitation dynamics. We develop a measure, where the two regimes intermix and quantify these differences via experimentally accessible higher-order photon correlations.

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Shahabedin C. Azizabadi, Nicolas L. Naumann, Manuel Katzer, Andreas Knorr, Alexander Carmele. 2017-06-16. Quantum cascade driving: Dissipatively mediated coherences. https://doi.org/10.1103/physreva.96.023816

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