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arXiv · 1805.02317

Stabilizing quantum coherence against pure dephasing in the presence of quantum feedback at finite temperature

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

A general formalism to describe the dynamics of quantum emitters in structured reservoirs is introduced. As an application, we investigate the optical coherence of an atom-like emitter diagonally coupled via a link-boson to a structured bosonic reservoir and obtain unconventional dephasing dynamics due to non-Markovian quantum feedback for different temperatures. For a two-level emitter embedded in a phonon cavity preservation of finite coherence is predicted up to room temperature.

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Nikolett Német, Scott Parkins, Andreas Knorr, Alexander Carmele. 2018-05-07. Stabilizing quantum coherence against pure dephasing in the presence of quantum feedback at finite temperature. https://doi.org/10.1103/physreva.99.053809

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