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Nonlinear optomechanical measurement of mechanical motion
Precision measurement of nonlinear observables is an important goal in all facets of quantum optics. This allows measurement-based non-classical state preparation, which has been applied to great success in various physical systems, and provides a route for quantum information processing with otherw...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4802172/ https://www.ncbi.nlm.nih.gov/pubmed/26996234 http://dx.doi.org/10.1038/ncomms10988 |
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author | Brawley, G. A. Vanner, M. R. Larsen, P. E. Schmid, S. Boisen, A. Bowen, W. P. |
author_facet | Brawley, G. A. Vanner, M. R. Larsen, P. E. Schmid, S. Boisen, A. Bowen, W. P. |
author_sort | Brawley, G. A. |
collection | PubMed |
description | Precision measurement of nonlinear observables is an important goal in all facets of quantum optics. This allows measurement-based non-classical state preparation, which has been applied to great success in various physical systems, and provides a route for quantum information processing with otherwise linear interactions. In cavity optomechanics much progress has been made using linear interactions and measurement, but observation of nonlinear mechanical degrees-of-freedom remains outstanding. Here we report the observation of displacement-squared thermal motion of a micro-mechanical resonator by exploiting the intrinsic nonlinearity of the radiation-pressure interaction. Using this measurement we generate bimodal mechanical states of motion with separations and feature sizes well below 100 pm. Future improvements to this approach will allow the preparation of quantum superposition states, which can be used to experimentally explore collapse models of the wavefunction and the potential for mechanical-resonator-based quantum information and metrology applications. |
format | Online Article Text |
id | pubmed-4802172 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-48021722016-03-25 Nonlinear optomechanical measurement of mechanical motion Brawley, G. A. Vanner, M. R. Larsen, P. E. Schmid, S. Boisen, A. Bowen, W. P. Nat Commun Article Precision measurement of nonlinear observables is an important goal in all facets of quantum optics. This allows measurement-based non-classical state preparation, which has been applied to great success in various physical systems, and provides a route for quantum information processing with otherwise linear interactions. In cavity optomechanics much progress has been made using linear interactions and measurement, but observation of nonlinear mechanical degrees-of-freedom remains outstanding. Here we report the observation of displacement-squared thermal motion of a micro-mechanical resonator by exploiting the intrinsic nonlinearity of the radiation-pressure interaction. Using this measurement we generate bimodal mechanical states of motion with separations and feature sizes well below 100 pm. Future improvements to this approach will allow the preparation of quantum superposition states, which can be used to experimentally explore collapse models of the wavefunction and the potential for mechanical-resonator-based quantum information and metrology applications. Nature Publishing Group 2016-03-21 /pmc/articles/PMC4802172/ /pubmed/26996234 http://dx.doi.org/10.1038/ncomms10988 Text en Copyright © 2016, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Brawley, G. A. Vanner, M. R. Larsen, P. E. Schmid, S. Boisen, A. Bowen, W. P. Nonlinear optomechanical measurement of mechanical motion |
title | Nonlinear optomechanical measurement of mechanical motion |
title_full | Nonlinear optomechanical measurement of mechanical motion |
title_fullStr | Nonlinear optomechanical measurement of mechanical motion |
title_full_unstemmed | Nonlinear optomechanical measurement of mechanical motion |
title_short | Nonlinear optomechanical measurement of mechanical motion |
title_sort | nonlinear optomechanical measurement of mechanical motion |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4802172/ https://www.ncbi.nlm.nih.gov/pubmed/26996234 http://dx.doi.org/10.1038/ncomms10988 |
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