期刊
PHYSICAL REVIEW LETTERS
卷 127, 期 24, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.127.243601
关键词
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资金
- Engineering and Physical Sciences Research Council [EP/T031271/1, EP/P510257/1]
- UK Research and Innovation [MR/S032924/1]
- Royal Society
- EU Horizon 2020 Program [847523]
- Australian Research Council [CE170100012, FL150100019]
- Aker Scholarship
- EPSRC [EP/T031271/1] Funding Source: UKRI
- UKRI [MR/S032924/1] Funding Source: UKRI
- Australian Research Council [FL150100019] Funding Source: Australian Research Council
Quantum optical measurement techniques have been utilized to perform non-Gaussian mechanical state preparation and tomography of mechanical phase-space distribution, advancing the optics-based tomography of mechanical states to a new level.
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-phonon and multiphonon 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-parametrized 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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