Photon-Pressure with an Effective Negative Mass Microwave Mode

• URL: http://arxiv.org/abs/2212.07461v2
• Date: Thu, 23 May 2024 10:49:02 GMT
• Title: Photon-Pressure with an Effective Negative Mass Microwave Mode
• Abstract summary: We show a microwave mode in a superconducting LC circuit that mimics the dynamics of a negative mass oscillator. We demonstrate that the effective negative mass dynamics lead to an inversion of dynamical backaction and to sideband-cooling of the low-frequency circuit by a blue-detuned pump field.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Harmonic oscillators belong to the most fundamental concepts in physics and are central to many current research fields such as circuit QED, cavity optomechanics and photon-pressure systems. Here, we engineer a microwave mode in a superconducting LC circuit that mimics the dynamics of a negative mass oscillator, and couple it via photon-pressure to a second low-frequency circuit. We demonstrate that the effective negative mass dynamics lead to an inversion of dynamical backaction and to sideband-cooling of the low-frequency circuit by a blue-detuned pump field, which can be intuitively understood by the inverted energy ladder of a negative mass oscillator.

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