Microwave Quantum Illumination with Optical Memory and Single-Mode Phase-Conjugate Receiver
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arXiv
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| Autori principali: | , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866909209211174912 |
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| author | Jeon, Sangwoo Kim, Jihwan Kim, Duk Y. Kim, Zaeill Jeong, Taek Lee, Su-Yong |
| author_facet | Jeon, Sangwoo Kim, Jihwan Kim, Duk Y. Kim, Zaeill Jeong, Taek Lee, Su-Yong |
| contents | Microwave quantum illumination with entangled pairs of microwave signal and optical idler modes, can achieve the sub-optimal performance with joint measurement of the signal and idler modes. Here, we first propose a testbed of microwave quantum illumination with an optical memory which is simulated with a delay line in the idler mode. It provides how much an input two-mode squeezing is necessary to compensate the loss of the optical memory, while maintaining quantum advantage over coherent state. When the memory is lossy, the input two-mode squeezing has to be higher through high cooperativity in the optical mode. Under the testbed, we propose a single-mode phase conjugate receiver that consists of a low-reflectivity beam splitter, an electro-optomechanical phase conjugator, and a photon number resolving detector. The performance of the newly proposed receiver approaches the maximum quantum advantage for local measurement. Furthermore, the quantum advantage is obtained even with an on-off detection while being robust against the loss of the memory. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_14118 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Microwave Quantum Illumination with Optical Memory and Single-Mode Phase-Conjugate Receiver Jeon, Sangwoo Kim, Jihwan Kim, Duk Y. Kim, Zaeill Jeong, Taek Lee, Su-Yong Quantum Physics Microwave quantum illumination with entangled pairs of microwave signal and optical idler modes, can achieve the sub-optimal performance with joint measurement of the signal and idler modes. Here, we first propose a testbed of microwave quantum illumination with an optical memory which is simulated with a delay line in the idler mode. It provides how much an input two-mode squeezing is necessary to compensate the loss of the optical memory, while maintaining quantum advantage over coherent state. When the memory is lossy, the input two-mode squeezing has to be higher through high cooperativity in the optical mode. Under the testbed, we propose a single-mode phase conjugate receiver that consists of a low-reflectivity beam splitter, an electro-optomechanical phase conjugator, and a photon number resolving detector. The performance of the newly proposed receiver approaches the maximum quantum advantage for local measurement. Furthermore, the quantum advantage is obtained even with an on-off detection while being robust against the loss of the memory. |
| title | Microwave Quantum Illumination with Optical Memory and Single-Mode Phase-Conjugate Receiver |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2405.14118 |