Joshi, Chaitanya, Irish, Elinor K. and Spiller, Timothy P. orcid.org/0000-0003-1083-2604 (2017) Qubit-flip-induced cavity mode squeezing in the strong dispersive regime of the quantum Rabi model. Scientific Reports. 45587. ISSN 2045-2322
Abstract
Squeezed states of light are a set of nonclassical states in which the quantum fluctuations of one quadrature component are reduced below the standard quantum limit. With less noise than the best stabilised laser sources, squeezed light is a key resource in the field of quantum technologies and has already improved sensing capabilities in areas ranging from gravitational wave detection to biomedical applications. In this work we propose a novel technique for generating squeezed states of a confined light field strongly coupled to a two-level system, or qubit, in the dispersive regime. Utilising the dispersive energy shift caused by the interaction, control of the qubit state produces a time-dependent change in the frequency of the light field. An appropriately timed sequence of sudden frequency changes reduces the quantum noise fluctuations in one quadrature of the field well below the standard quantum limit. The degree of squeezing and the time of generation are directly controlled by the number of frequency shifts applied. Even in the presence of realistic noise and imperfections, our protocol promises to be capable of generating a useful degree of squeezing with present experimental capabilities.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) |
Funding Information: | Funder Grant number EPSRC EP/I038683/1 |
Depositing User: | Pure (York) |
Date Deposited: | 16 Mar 2017 14:20 |
Last Modified: | 07 Feb 2025 00:15 |
Published Version: | https://doi.org/10.1038/srep45587 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1038/srep45587 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:113696 |
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Description: Qubit-flip-induced cavity mode squeezing in the strong dispersive regime of the quantum Rabi model
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