Parametrically enhanced interactions and nonreciprocal bath dynamics in a photon-pressure Kerr amplifier.

ABSTRACT: Photon-pressure coupling between two superconducting circuits is a promising platform for investigating radiation-pressure coupling in distinct parameter regimes and for the development of radio-frequency (RF) quantum photonics and quantum-limited RF sensing. Here, we implement photon-pressure coupling between two superconducting circuits, one of which can be operated as a parametric amplifier. We demonstrate a Kerr-based enhancement of the photon-pressure single-photon coupling rate and an increase of the cooperativity by one order of magnitude in the amplifier regime. In addition, we observe that the intracavity amplification reduces the measurement imprecision of RF signal detection. Last, we demonstrate that RF mode sideband cooling is unexpectedly not limited to the effective amplifie

SUBMITTER: Rodrigues IC 

PROVIDER: S-EPMC9417172 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature