Non-Gaussian mechanical motion via single and multi-phonon subtraction from a thermal state

• URL: http://arxiv.org/abs/2103.05175v2
• Date: Fri, 22 Oct 2021 12:55:21 GMT
• Title: Non-Gaussian mechanical motion via single and multi-phonon subtraction from a thermal state
• Authors: Georg Enzian, Lars Freisem, John J. Price, Andreas \O. Svela, Jack Clarke, Biveen Shajilal, Jiri Janousek, Ben C. Buchler, Ping Koy Lam, and Michael R. Vanner
• Abstract summary: We experimentally perform heralded single- and multi-phonon subtraction via photon counting to a laser-cooled mechanical thermal state with a Brillouin optomechanical system at room temperature. The techniques developed here advance the state-of-the-art for optics-based tomography of mechanical states and will be useful for a broad range of applied and fundamental studies.
• Score: 0.37750087362568563
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Quantum optical measurement techniques offer a rich avenue for quantum control of mechanical oscillators via cavity optomechanics. In particular, a powerful yet little explored combination utilizes optical measurements to perform heralded non-Gaussian mechanical state preparation followed by tomography to determine the mechanical phase-space distribution. Here, we experimentally perform heralded single- and multi-phonon subtraction via photon counting to a laser-cooled mechanical thermal state with a Brillouin optomechanical system at room temperature, and use optical heterodyne detection to measure the $s$-parameterized Wigner distribution of the non-Gaussian mechanical states generated. The techniques developed here advance the state-of-the-art for optics-based tomography of mechanical states and will be useful for a broad range of applied and fundamental studies that utilize mechanical quantum-state engineering and tomography.

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