Generation of non-Gaussian states of light using deterministic photon subtraction
We explore a recently demonstrated deterministic photon subtraction scheme, based on single-photon Raman interaction with a Λ-type three-level atom, as a tool for manipulating quantum state of few-photon light pulses. We establish a comprehensive theoretical framework using input–output formalism an...
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IOP Publishing
2024-01-01
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| Series: | New Journal of Physics |
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| Online Access: | https://doi.org/10.1088/1367-2630/ad95b3 |
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| author | Abdolreza Pasharavesh Michal Bajcsy |
| author_facet | Abdolreza Pasharavesh Michal Bajcsy |
| author_sort | Abdolreza Pasharavesh |
| collection | DOAJ |
| description | We explore a recently demonstrated deterministic photon subtraction scheme, based on single-photon Raman interaction with a Λ-type three-level atom, as a tool for manipulating quantum state of few-photon light pulses. We establish a comprehensive theoretical framework using input–output formalism and quantum regression theorem, enabling calculation of the first order autocorrelation matrices of the output light and identification of the temporal modes present in the generated light via their eigendecomposition. By modeling the entire system as a quantum network consisting multiple virtual cavities and a lambda-type emitter cascaded in two parallel guided modes of opposite propagation directions, we extract the quantum state occupying the modes of interest. For both squeezed vacuum and coherent light input pulses, the Wigner function of the output light after photon subtraction clearly reveals its non-Gaussian character. Furthermore, we propose a measurement-based scheme on the subtracted photon which can lead to conditional generation of quantum states resembling Schrodinger’s kitten state directly from coherent input light with fidelities above 99%. This result is particularly nothworthy, as coherent pulses, unlike the squeezed vacuum inputs commonly used in previous studies, are readily available in most experimental setups. |
| format | Article |
| id | doaj-art-bcffc3e77d2e4c229fcd66b0b8f78739 |
| institution | Kabale University |
| issn | 1367-2630 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj-art-bcffc3e77d2e4c229fcd66b0b8f787392024-12-02T06:35:15ZengIOP PublishingNew Journal of Physics1367-26302024-01-01261111302210.1088/1367-2630/ad95b3Generation of non-Gaussian states of light using deterministic photon subtractionAbdolreza Pasharavesh0Michal Bajcsy1Institute for Quantum Computing, University of Waterloo , Waterloo, ON, Canada; Department of Electrical and Computer Engineering, University of Waterloo , Waterloo, ON, CanadaInstitute for Quantum Computing, University of Waterloo , Waterloo, ON, Canada; Department of Electrical and Computer Engineering, University of Waterloo , Waterloo, ON, CanadaWe explore a recently demonstrated deterministic photon subtraction scheme, based on single-photon Raman interaction with a Λ-type three-level atom, as a tool for manipulating quantum state of few-photon light pulses. We establish a comprehensive theoretical framework using input–output formalism and quantum regression theorem, enabling calculation of the first order autocorrelation matrices of the output light and identification of the temporal modes present in the generated light via their eigendecomposition. By modeling the entire system as a quantum network consisting multiple virtual cavities and a lambda-type emitter cascaded in two parallel guided modes of opposite propagation directions, we extract the quantum state occupying the modes of interest. For both squeezed vacuum and coherent light input pulses, the Wigner function of the output light after photon subtraction clearly reveals its non-Gaussian character. Furthermore, we propose a measurement-based scheme on the subtracted photon which can lead to conditional generation of quantum states resembling Schrodinger’s kitten state directly from coherent input light with fidelities above 99%. This result is particularly nothworthy, as coherent pulses, unlike the squeezed vacuum inputs commonly used in previous studies, are readily available in most experimental setups.https://doi.org/10.1088/1367-2630/ad95b3deterministic photon subtractionsingle-photon Raman interactionquantum state engineeringinput–output formalismSchrodinger’s kitten states |
| spellingShingle | Abdolreza Pasharavesh Michal Bajcsy Generation of non-Gaussian states of light using deterministic photon subtraction New Journal of Physics deterministic photon subtraction single-photon Raman interaction quantum state engineering input–output formalism Schrodinger’s kitten states |
| title | Generation of non-Gaussian states of light using deterministic photon subtraction |
| title_full | Generation of non-Gaussian states of light using deterministic photon subtraction |
| title_fullStr | Generation of non-Gaussian states of light using deterministic photon subtraction |
| title_full_unstemmed | Generation of non-Gaussian states of light using deterministic photon subtraction |
| title_short | Generation of non-Gaussian states of light using deterministic photon subtraction |
| title_sort | generation of non gaussian states of light using deterministic photon subtraction |
| topic | deterministic photon subtraction single-photon Raman interaction quantum state engineering input–output formalism Schrodinger’s kitten states |
| url | https://doi.org/10.1088/1367-2630/ad95b3 |
| work_keys_str_mv | AT abdolrezapasharavesh generationofnongaussianstatesoflightusingdeterministicphotonsubtraction AT michalbajcsy generationofnongaussianstatesoflightusingdeterministicphotonsubtraction |