Dynamical Casimir effect and state transfer in the ultrastrong coupling regime

Giuliano Benenti; Michele Stramacchia; Giuliano Strini

doi:10.3390/proceedings2019012012

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arXiv · 1906.00468

Dynamical Casimir effect and state transfer in the ultrastrong coupling regime

Giuliano Benenti·Michele Stramacchia·Giuliano Strini

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Abstract

The dynamical Casimir effect (DCE) manifests itself in the ultrastrong matter-field coupling (USC) regime, as a consequence of the nonadiabatic change of some parameters of a system. We show that the DCE is a fundamental limitation for standard quantum protocols based on quantum Rabi oscillations, implying that new schemes are required to implement high-fidelity ultrafast quantum gates. Our results are illustrated by means of a paradigmatic quantum communication protocol, i.e., quantum state transfer.

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Giuliano Benenti, Michele Stramacchia, Giuliano Strini. 2019-06-02. Dynamical Casimir effect and state transfer in the ultrastrong coupling regime. https://doi.org/10.3390/proceedings2019012012

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