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arXiv · 1902.08328

Comparison between continuous- and discrete-mode coherent feedback for the Jaynes-Cummings model

Nikolett Német·Alexander Carmele·Scott Parkins·Andreas Knorr
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Abstract

Using the example of the Jaynes-Cummings model, we present a comparison between time-delayed coherent feedback mediated by reservoirs with continuous and discrete mode structures and work out their qualitative differences. In contrast to the discrete-mode case, the continuous-mode case results in the well-known single-delay dynamics which can, e.g., stabilize Rabi oscillations. The discrete-mode case, however, shows population trapping, not present in the continuous-mode model. Given these differences, we discuss the cavity output spectra and show how these characteristic properties are spectrally identifiable. This work demonstrates the fundamental difference between the continuous-mode case, which represents a truly dissipative mechanism, and the discrete-mode case that is in principle based on a coherent excitation exchange process.

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Nikolett Német, Alexander Carmele, Scott Parkins, Andreas Knorr. 2019-02-22. Comparison between continuous- and discrete-mode coherent feedback for the Jaynes-Cummings model. https://doi.org/10.1103/physreva.100.023805

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