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 independently of the output statistics. We provide simulations and a characterization of this architecture.
Authors
- Xi Lu (ORCID: https://orcid.org/0000-0003-4121-3419)
- Lorenzo Maccone (ORCID: https://orcid.org/0000-0002-6729-5312)
- Simone Roncallo (ORCID: https://orcid.org/0000-0003-3506-9027)
Institutions
- University of Pavia (IT)
- Istituto Nazionale di Fisica Nucleare, Sezione di Pavia (IT)
- Zhejiang University (CN)
Publication Details
- Journal
- Quantum
- Published
- 2025-04-18
- DOI
- https://doi.org/10.22331/q-2025-04-18-1713
- Citations
- 1
- Primary Topic
- Advanced Fiber Laser Technologies
- Type
- article
- Field-Weighted Citation Impact
- 1.25
Funders
- U.S. Department of Energy
- National Natural Science Foundation of China
- Ministero dell’Istruzione, dell’Università e della Ricerca
- Università degli Studi di Pavia
- Zhejiang University
- Office of Science