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  Quantum squeezing of motion in a mechanical resonator

Wollman, E. E., Lei, C. U., Weinstein, A. J., Suh, J., Kronwald, A., Marquardt, F., et al. (2015). Quantum squeezing of motion in a mechanical resonator. Science, 349(6251), 952-955. doi:10.1126/science.aac5138.

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 Creators:
Wollman, E. E.1, Author
Lei, C. U.1, Author
Weinstein, A. J.1, Author
Suh, J.1, Author
Kronwald, A.1, Author
Marquardt, F.2, Author              
Clerk, A. A.1, Author
Schwab, K. C.1, Author
Affiliations:
1external, ou_persistent22              
2Marquardt Group, Associated Groups, Max Planck Institute for the Science of Light, Max Planck Society, ou_2364694              

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Free keywords: GROUND-STATE; FLUCTUATIONS; LIGHT; ATOMScience & Technology - Other Topics;
 Abstract: According to quantum mechanics, a harmonic oscillator can never be completely at rest. Even in the ground state, its position will always have fluctuations, called the zero-point motion. Although the zero-point fluctuations are unavoidable, they can be manipulated. Using microwave frequency radiation pressure, we have manipulated the thermal fluctuations of a micrometer-scale mechanical resonator to produce a stationary quadrature-squeezed state with a minimum variance of 0.80 times that of the ground state. We also performed phase-sensitive, back-action evading measurements of a thermal state squeezed to 1.09 times the zero-point level. Our results are relevant to the quantum engineering of states of matter at large length scales, the study of decoherence of large quantum systems, and for the realization of ultrasensitive sensing of force and motion.

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Language(s): eng - English
 Dates: 2015
 Publication Status: Published in print
 Pages: 4
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: ISI: 000360646800047
DOI: 10.1126/science.aac5138
 Degree: -

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Title: Science
  Abbreviation : Science
Source Genre: Journal
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Publ. Info: Washington, D.C. : American Association for the Advancement of Science
Pages: - Volume / Issue: 349 (6251) Sequence Number: - Start / End Page: 952 - 955 Identifier: ISSN: 0036-8075
CoNE: https://pure.mpg.de/cone/journals/resource/991042748276600_1