Improvement of phase sensitivity in SU(1,1) interferometer using number-conserving operations
We propose a theoretical scheme to improve the phase sensitivity by introducing the number-conserving generalized superposition of product into squeezed thermal state of the traditional SU(1,1) interferometer with intensity detection. We investigate the effect of different parameter and photon losse...
| Main Authors: | , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-03-01
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| Series: | Results in Physics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379724001475 |
| _version_ | 1797259985870127104 |
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| author | Jie Tang JiaHao Li YueXiang Cao Ying Liu HaoRan Hu Ya Wang Dan Wu ZhiFeng Deng HuiCun Yu XingYu Wang HuaZhi Lun JiaHua Wei Lei Shi |
| author_facet | Jie Tang JiaHao Li YueXiang Cao Ying Liu HaoRan Hu Ya Wang Dan Wu ZhiFeng Deng HuiCun Yu XingYu Wang HuaZhi Lun JiaHua Wei Lei Shi |
| author_sort | Jie Tang |
| collection | DOAJ |
| description | We propose a theoretical scheme to improve the phase sensitivity by introducing the number-conserving generalized superposition of product into squeezed thermal state of the traditional SU(1,1) interferometer with intensity detection. We investigate the effect of different parameter and photon losses on phase sensitivity under the condition of the ideal and the realistic phase estimation process, respectively. Moreover, compared with the previous methods, our scheme can not only enhance the phase sensitivity, but also significantly suppress the photon losses with only first-order GSP operation. It means that our scheme needs less resources and less operations to obtain higher phase sensitivity. These above results indicate that our scheme is viable in the phase sensitivity improvement, which may have practical applications in quantum information processing. |
| first_indexed | 2024-03-08T00:01:00Z |
| format | Article |
| id | doaj.art-a242d03bb8b64d1198023126b6002ab7 |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-04-24T23:18:08Z |
| publishDate | 2024-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj.art-a242d03bb8b64d1198023126b6002ab72024-03-17T07:53:35ZengElsevierResults in Physics2211-37972024-03-0158107465Improvement of phase sensitivity in SU(1,1) interferometer using number-conserving operationsJie Tang0JiaHao Li1YueXiang Cao2Ying Liu3HaoRan Hu4Ya Wang5Dan Wu6ZhiFeng Deng7HuiCun Yu8XingYu Wang9HuaZhi Lun10JiaHua Wei11Lei Shi12Information and Navigation College, Air Force Engineering University, Xi’an 710000, ChinaInformation and Navigation College, Air Force Engineering University, Xi’an 710000, ChinaInformation and Navigation College, Air Force Engineering University, Xi’an 710000, ChinaInformation and Navigation College, Air Force Engineering University, Xi’an 710000, ChinaInformation and Navigation College, Air Force Engineering University, Xi’an 710000, ChinaInformation and Navigation College, Air Force Engineering University, Xi’an 710000, ChinaInformation and Navigation College, Air Force Engineering University, Xi’an 710000, ChinaInformation and Navigation College, Air Force Engineering University, Xi’an 710000, ChinaInformation and Navigation College, Air Force Engineering University, Xi’an 710000, ChinaInformation and Navigation College, Air Force Engineering University, Xi’an 710000, ChinaInformation and Navigation College, Air Force Engineering University, Xi’an 710000, ChinaInformation and Navigation College, Air Force Engineering University, Xi’an 710000, ChinaCorresponding author.; Information and Navigation College, Air Force Engineering University, Xi’an 710000, ChinaWe propose a theoretical scheme to improve the phase sensitivity by introducing the number-conserving generalized superposition of product into squeezed thermal state of the traditional SU(1,1) interferometer with intensity detection. We investigate the effect of different parameter and photon losses on phase sensitivity under the condition of the ideal and the realistic phase estimation process, respectively. Moreover, compared with the previous methods, our scheme can not only enhance the phase sensitivity, but also significantly suppress the photon losses with only first-order GSP operation. It means that our scheme needs less resources and less operations to obtain higher phase sensitivity. These above results indicate that our scheme is viable in the phase sensitivity improvement, which may have practical applications in quantum information processing.http://www.sciencedirect.com/science/article/pii/S2211379724001475SU(1,1) interferometerPhase sensitivityIntensity detectionNumber-conserving generalized superposition of product |
| spellingShingle | Jie Tang JiaHao Li YueXiang Cao Ying Liu HaoRan Hu Ya Wang Dan Wu ZhiFeng Deng HuiCun Yu XingYu Wang HuaZhi Lun JiaHua Wei Lei Shi Improvement of phase sensitivity in SU(1,1) interferometer using number-conserving operations Results in Physics SU(1,1) interferometer Phase sensitivity Intensity detection Number-conserving generalized superposition of product |
| title | Improvement of phase sensitivity in SU(1,1) interferometer using number-conserving operations |
| title_full | Improvement of phase sensitivity in SU(1,1) interferometer using number-conserving operations |
| title_fullStr | Improvement of phase sensitivity in SU(1,1) interferometer using number-conserving operations |
| title_full_unstemmed | Improvement of phase sensitivity in SU(1,1) interferometer using number-conserving operations |
| title_short | Improvement of phase sensitivity in SU(1,1) interferometer using number-conserving operations |
| title_sort | improvement of phase sensitivity in su 1 1 interferometer using number conserving operations |
| topic | SU(1,1) interferometer Phase sensitivity Intensity detection Number-conserving generalized superposition of product |
| url | http://www.sciencedirect.com/science/article/pii/S2211379724001475 |
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