State Preparation and Tomography of a Nanomechanical Resonator with Fast Light Pulses
Muhonen, J. T., La Gala, G. R., Leijssen, R., & Verhagen, E. (2019). State Preparation and Tomography of a Nanomechanical Resonator with Fast Light Pulses. Physical Review Letters, 123(11), Article 113601. https://doi.org/10.1103/PhysRevLett.123.113601
Published inPhysical Review Letters
© 2019 American Physical Society
Pulsed optomechanical measurements enable squeezing, nonclassical state creation, and backaction-free sensing. We demonstrate pulsed measurement of a cryogenic nanomechanical resonator with record precision close to the quantum regime. We use these to prepare thermally squeezed and purified conditional mechanical states, and to perform full state tomography. These demonstrations exploit large vacuum optomechanical coupling in a nanophotonic cavity to reach a single-pulse imprecision of 9 times the mechanical zero-point amplitude xzpf. We study the effect of other mechanical modes that limit the conditional state width to 58xzpf, and show how decoherence causes the state to grow in time.
PublisherAmerican Physical Society
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Additional information about fundingThis work is part of the research programme of the Netherlands Organisation for Scientific Research (NWO), and supported by the European Union’s Horizon 2020 research and innovation programme under Grant Agreement No. 732894 (FET Proactive HOT). E. V. gratefully acknowledges an NWO-Vidi grant for financial support. J. T. M. thankfully acknowledges funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 707364. ...
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