Optimal multiple-phase estimation with multi-mode NOON states against photon loss
| Autor: | Namkung, Min, Kim, Dong-Hyun, Hong, Seongjin, Kim, Yong-Su, Lee, Changhyoup, Lim, Hyang-Tag |
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| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | New Journal of Physics 26, 073028 (2024) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1088/1367-2630/ad5eaf |
| Popis: | 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. Comment: 10 pages, 7 figures |
| Databáze: | arXiv |
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