Interferometric binary phase estimations
We propose an interferometric scheme where each photon returns one bit of the binary expansion of an unknown phase. It sets up a method for estimating the phase value at arbitrary uncertainty. This strategy is global, since it requires no prior information, and it achieves the Heisenberg bound indep...
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| Format: | Article |
| Language: | English |
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Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften
2025-04-01
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| Series: | Quantum |
| Online Access: | https://quantum-journal.org/papers/q-2025-04-18-1713/pdf/ |
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| _version_ | 1849698568130002944 |
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| author | Simone Roncallo Xi Lu Lorenzo Maccone |
| author_facet | Simone Roncallo Xi Lu Lorenzo Maccone |
| author_sort | Simone Roncallo |
| collection | DOAJ |
| description | We propose an interferometric scheme where each photon returns one bit of the binary expansion of an unknown phase. It sets up a method for estimating the phase value at arbitrary uncertainty. This strategy is global, since it requires no prior information, and it achieves the Heisenberg bound independently of the output statistics. We provide simulations and a characterization of this architecture. |
| format | Article |
| id | doaj-art-e141ecf43a5049d583b4546f9f96855b |
| institution | DOAJ |
| issn | 2521-327X |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften |
| record_format | Article |
| series | Quantum |
| spelling | doaj-art-e141ecf43a5049d583b4546f9f96855b2025-08-20T03:18:52ZengVerein zur Förderung des Open Access Publizierens in den QuantenwissenschaftenQuantum2521-327X2025-04-019171310.22331/q-2025-04-18-171310.22331/q-2025-04-18-1713Interferometric binary phase estimationsSimone RoncalloXi LuLorenzo MacconeWe propose an interferometric scheme where each photon returns one bit of the binary expansion of an unknown phase. It sets up a method for estimating the phase value at arbitrary uncertainty. This strategy is global, since it requires no prior information, and it achieves the Heisenberg bound independently of the output statistics. We provide simulations and a characterization of this architecture.https://quantum-journal.org/papers/q-2025-04-18-1713/pdf/ |
| spellingShingle | Simone Roncallo Xi Lu Lorenzo Maccone Interferometric binary phase estimations Quantum |
| title | Interferometric binary phase estimations |
| title_full | Interferometric binary phase estimations |
| title_fullStr | Interferometric binary phase estimations |
| title_full_unstemmed | Interferometric binary phase estimations |
| title_short | Interferometric binary phase estimations |
| title_sort | interferometric binary phase estimations |
| url | https://quantum-journal.org/papers/q-2025-04-18-1713/pdf/ |
| work_keys_str_mv | AT simoneroncallo interferometricbinaryphaseestimations AT xilu interferometricbinaryphaseestimations AT lorenzomaccone interferometricbinaryphaseestimations |