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arXiv · 2203.07477

Interaction of quantum systems with single pulses of quantized radiation

Victor Rueskov Christiansen·Alexander Holm Kiilerich·Klaus Mølmer
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Abstract

The interaction of a propagating pulse of quantum radiation with a localized quantum system can be described by a cascaded master equation with a distinct initially populated input and a finally populated output field mode [Phys. Rev. Lett. 123, 123604 (2019), arXiv:1902.09833v3]. By transformation to an appropriate interaction picture, we identify the usual Jaynes-Cummings Hamiltonian between the scatterer and a superposition of the initial and final mode, with a strength given by the travelling pulse mode amplitude. The transformation also identifies a coupling of the scatterer with an orthogonal combination of the two modes. The transformed master equation offers important insights into the system dynamics and it permits numerically efficient solutions.

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Victor Rueskov Christiansen, Alexander Holm Kiilerich, Klaus Mølmer. 2022-03-14. Interaction of quantum systems with single pulses of quantized radiation. https://doi.org/10.1103/physreva.107.013706

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