Growing macroscopic superposition states via cavity quantum optomechanics
The investigation of macroscopic quantum phenomena is a current active area of research that offers significant promise to advance the forefronts of both fundamental and applied quantum science. Utilizing the exquisite precision and control of quantum optics provides a powerful toolset for generatin...
| Hlavní autoři: | , |
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| Médium: | Journal article |
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IOP Publishing
2018
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| _version_ | 1826283595467063296 |
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| author | Clarke, J Vanner, M |
| author_facet | Clarke, J Vanner, M |
| author_sort | Clarke, J |
| collection | OXFORD |
| description | The investigation of macroscopic quantum phenomena is a current active area of research that offers significant promise to advance the forefronts of both fundamental and applied quantum science. Utilizing the exquisite precision and control of quantum optics provides a powerful toolset for generating such quantum states where the types and `size' of the states that can be generated are set by the experimental parameter regime available and the resourcefulness of the protocol applied. In this work we present a new multistep scheme to `grow' macroscopic superposition states of motion of a mechanical oscillator via cavity quantum optomechanics. The scheme consists of a series of optical pulses interacting with a mechanical mode via radiation-pressure followed by photon-counting measurements. The multistep nature of our protocol allows macroscopic superposition states to be prepared with a relaxed requirement for the single-photon optomechanical coupling strength. To illustrate the experimental feasibility of our proposal, we quantify how initial mechanical thermal occupation and mechanical decoherence affects the non-classicality and macroscopicity of the states generated and show that our scheme is resilient to optical loss. The advantages of this protocol provide a promising path to grow non-classical mechanical quantum states to a macroscopic scale under realistic experimental conditions. |
| first_indexed | 2024-03-07T01:01:14Z |
| format | Journal article |
| id | oxford-uuid:89cf5fa8-b3e6-4e11-a9e5-a3fe1f6eb7ad |
| institution | University of Oxford |
| last_indexed | 2024-03-07T01:01:14Z |
| publishDate | 2018 |
| publisher | IOP Publishing |
| record_format | dspace |
| spelling | oxford-uuid:89cf5fa8-b3e6-4e11-a9e5-a3fe1f6eb7ad2022-03-26T22:27:09ZGrowing macroscopic superposition states via cavity quantum optomechanicsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:89cf5fa8-b3e6-4e11-a9e5-a3fe1f6eb7adSymplectic Elements at OxfordIOP Publishing2018Clarke, JVanner, MThe investigation of macroscopic quantum phenomena is a current active area of research that offers significant promise to advance the forefronts of both fundamental and applied quantum science. Utilizing the exquisite precision and control of quantum optics provides a powerful toolset for generating such quantum states where the types and `size' of the states that can be generated are set by the experimental parameter regime available and the resourcefulness of the protocol applied. In this work we present a new multistep scheme to `grow' macroscopic superposition states of motion of a mechanical oscillator via cavity quantum optomechanics. The scheme consists of a series of optical pulses interacting with a mechanical mode via radiation-pressure followed by photon-counting measurements. The multistep nature of our protocol allows macroscopic superposition states to be prepared with a relaxed requirement for the single-photon optomechanical coupling strength. To illustrate the experimental feasibility of our proposal, we quantify how initial mechanical thermal occupation and mechanical decoherence affects the non-classicality and macroscopicity of the states generated and show that our scheme is resilient to optical loss. The advantages of this protocol provide a promising path to grow non-classical mechanical quantum states to a macroscopic scale under realistic experimental conditions. |
| spellingShingle | Clarke, J Vanner, M Growing macroscopic superposition states via cavity quantum optomechanics |
| title | Growing macroscopic superposition states via cavity quantum optomechanics |
| title_full | Growing macroscopic superposition states via cavity quantum optomechanics |
| title_fullStr | Growing macroscopic superposition states via cavity quantum optomechanics |
| title_full_unstemmed | Growing macroscopic superposition states via cavity quantum optomechanics |
| title_short | Growing macroscopic superposition states via cavity quantum optomechanics |
| title_sort | growing macroscopic superposition states via cavity quantum optomechanics |
| work_keys_str_mv | AT clarkej growingmacroscopicsuperpositionstatesviacavityquantumoptomechanics AT vannerm growingmacroscopicsuperpositionstatesviacavityquantumoptomechanics |