Single-photon induced instabilities in a cavity electromechanical device.

ABSTRACT: Cavity-electromechanical systems are extensively used for sensing and controlling the vibrations of mechanical resonators down to their quantum limit. The nonlinear radiation-pressure interaction in these systems could result in an unstable response of the mechanical resonator showing features such as frequency-combs, period-doubling bifurcations and chaos. However, due to weak light-matter interaction, typically these effects appear at very high driving strengths. By using polariton modes formed by a strongly coupled flux-tunable transmon and a microwave cavity, here we demonstrate an electromechanical device and achieve a single-photon coupling rate g0/2π of 160 kHz, which is nearly 4% of the mechanical frequency ω_m. Due to large g₀/ω_m ratio, the device s

SUBMITTER: Bera T 

PROVIDER: S-EPMC11333599 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature