Optimal multiple-phase estimation with multi-mode NOON states against photon loss
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arXiv
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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866911962779090944 |
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| author | Namkung, Min Kim, Dong-Hyun Hong, Seongjin Kim, Yong-Su Lee, Changhyoup Lim, Hyang-Tag |
| author_facet | Namkung, Min Kim, Dong-Hyun Hong, Seongjin Kim, Yong-Su Lee, Changhyoup Lim, Hyang-Tag |
| contents | Multi-mode NOON states can quantum-enhance multiple-phase estimation in the absence of photon loss. However, a multi-mode NOON state is known to be vulnerable to photon loss, and its quantum-enhancement can be dissipated by lossy environment. In this work, we demonstrate that a quantum advantage in estimate precision can still be achieved in the presence of photon loss. This is accomplished by optimizing the weights of the multi-mode NOON states according to photon loss rates in the multiple modes, including the reference mode which defines the other phases. For practical relevance, we also show that photon-number counting via a multi-mode beam-splitter achieves the useful, albeit sub-optimal, quantum advantage. We expect this work to provide valuable guidance for developing quantum-enhanced multiple-phase estimation techniques in lossy environments. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_09734 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Optimal multiple-phase estimation with multi-mode NOON states against photon loss Namkung, Min Kim, Dong-Hyun Hong, Seongjin Kim, Yong-Su Lee, Changhyoup Lim, Hyang-Tag Quantum Physics Optics Multi-mode NOON states can quantum-enhance multiple-phase estimation in the absence of photon loss. However, a multi-mode NOON state is known to be vulnerable to photon loss, and its quantum-enhancement can be dissipated by lossy environment. In this work, we demonstrate that a quantum advantage in estimate precision can still be achieved in the presence of photon loss. This is accomplished by optimizing the weights of the multi-mode NOON states according to photon loss rates in the multiple modes, including the reference mode which defines the other phases. For practical relevance, we also show that photon-number counting via a multi-mode beam-splitter achieves the useful, albeit sub-optimal, quantum advantage. We expect this work to provide valuable guidance for developing quantum-enhanced multiple-phase estimation techniques in lossy environments. |
| title | Optimal multiple-phase estimation with multi-mode NOON states against photon loss |
| topic | Quantum Physics Optics |
| url | https://arxiv.org/abs/2401.09734 |