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arXiv · 2305.16226

Linear Ultrastrong Optomechanical Interaction

Kahan Dare·Jannek J. Hansen·Iurie Coroli·Aisling Johnson·Markus Aspelmeyer·Uroš Delić
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Abstract

Light-matter interaction in the ultrastrong coupling regime can be used to generate exotic ground states with two-mode squeezing and may be of use for quantum enhanced sensing. Current demonstrations of ultrastrong coupling have been performed in fundamentally nonlinear systems. We report a cavity optomechanical system that operates in the linear coupling regime, reaching a maximum coupling of $g_x/\Omega_x=0.55\pm 0.02$. Such a system is inherently unstable, which may in the future enable strong mechanical squeezing.

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Kahan Dare, Jannek J. Hansen, Iurie Coroli, Aisling Johnson, Markus Aspelmeyer, Uroš Delić. 2023-05-25. Linear Ultrastrong Optomechanical Interaction. https://doi.org/10.1103/physrevresearch.6.l042025

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