Backaction-Evading Measurement of Mechanical Motion in the Optical Domain

Itay Shomroni; Liu Qiu; Tobias Kippenberg

doi:10.1109/OMN.2018.8454566

Backaction-Evading Measurement of Mechanical Motion in the Optical Domain

Itay Shomroni, Liu Qiu, Tobias Kippenberg

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

When measuring the position of a mechanical oscillator, quantum mechanics imposes a strict limit on the attainable precision: Any reduction of imprecision leads to increased quantum backaction of the measuring probe on the oscillator. This quantum limit can be circumvented, in principle allowing to indefinitely reduce imprecision, by monitoring only a single quadrature of the oscillator. Such backaction-evading measurement has been recently demonstrated in electromechanical oscillators coupled to microwave resonant circuits. Here we demonstrate this technique in a photonic crystal nanomechanical oscillator, cryogenically and optomechanically cooled to a few quanta.

Original language	English
Title of host publication	International Conference on Optical MEMS and Nanophotonics, OMN 2018 - Proceedings
Publisher	IEEE Computer Society
ISBN (Print)	9781509063727
DOIs	https://doi.org/10.1109/OMN.2018.8454566
State	Published - 4 Sep 2018
Externally published	Yes
Event	23rd International Conference on Optical MEMS and Nanophotonics, OMN 2018 - Lausanne, Switzerland Duration: 29 Jul 2018 → 2 Aug 2018

Publication series

Name	International Conference on Optical MEMS and Nanophotonics
Volume	2018-July
ISSN (Print)	2160-5033
ISSN (Electronic)	2160-5041

Conference

Conference	23rd International Conference on Optical MEMS and Nanophotonics, OMN 2018
Country/Territory	Switzerland
City	Lausanne
Period	29/07/18 → 2/08/18

Bibliographical note

Publisher Copyright:
© 2018 IEEE.

Keywords

backaction evasion
nanomechanics
optomechanics

Access to Document

10.1109/OMN.2018.8454566

Cite this

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abstract = "When measuring the position of a mechanical oscillator, quantum mechanics imposes a strict limit on the attainable precision: Any reduction of imprecision leads to increased quantum backaction of the measuring probe on the oscillator. This quantum limit can be circumvented, in principle allowing to indefinitely reduce imprecision, by monitoring only a single quadrature of the oscillator. Such backaction-evading measurement has been recently demonstrated in electromechanical oscillators coupled to microwave resonant circuits. Here we demonstrate this technique in a photonic crystal nanomechanical oscillator, cryogenically and optomechanically cooled to a few quanta.",

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Shomroni, I, Qiu, L & Kippenberg, T 2018, Backaction-Evading Measurement of Mechanical Motion in the Optical Domain. in International Conference on Optical MEMS and Nanophotonics, OMN 2018 - Proceedings., 8454566, International Conference on Optical MEMS and Nanophotonics, vol. 2018-July, IEEE Computer Society, 23rd International Conference on Optical MEMS and Nanophotonics, OMN 2018, Lausanne, Switzerland, 29/07/18. https://doi.org/10.1109/OMN.2018.8454566

Backaction-Evading Measurement of Mechanical Motion in the Optical Domain. / Shomroni, Itay; Qiu, Liu; Kippenberg, Tobias.
International Conference on Optical MEMS and Nanophotonics, OMN 2018 - Proceedings. IEEE Computer Society, 2018. 8454566 (International Conference on Optical MEMS and Nanophotonics; Vol. 2018-July).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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Backaction-Evading Measurement of Mechanical Motion in the Optical Domain

Abstract

Publication series

Conference

Bibliographical note

Keywords

Access to Document

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