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arXiv · 1806.01952

Ultrastrongly dissipative quantum Rabi model

David Zueco·Juanjo García-Ripoll
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Abstract

We discuss the equilibrium and out of equilibrium dynamics of cavity QED in presence of dissipation beyond the standard perturbative treatment of losses. Using the dynamical polaron \emph{ansatz} and Matrix Product State simulations, we discuss the case where both light-matter $g$-coupling and system-bath interaction are in the ultrastrong coupling regime. We provide a critical $g$ for the onset of Rabi oscillations. Besides, we demonstrate that the qubit is \emph{dressed} by the cavity and dissipation. That such dressing governs the dynamics and, thus, it can be measured. Finally, we sketch an implementation for our theoretical ideas within circuit QED technology.

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David Zueco, Juanjo García-Ripoll. 2018-06-05. Ultrastrongly dissipative quantum Rabi model. https://doi.org/10.1103/physreva.99.013807

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