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Quantum interferometry with and without an external phase reference
Open accessAbstract
We discuss the role of an external phase reference in quantum interferometry. We point out inconsistencies in the literature with regard to the use of the quantum Fisher information (QFI) in phase estimation interferometric schemes. We discuss the interferometric schemes with and without an external phase reference and show a proper way to use QFI in both situations.
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“If all phase reference beams are taken into account, we can regard quantum states of light as incoherent mixtures of states occupying different total photon number sectors5354.”
From The elusive Heisenberg limit in quantum-enhanced metrology (2012) · cites this paper as [53]
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Metadata
- Authors
- Jarzyna, M., & Demkowicz-Dobrzański, R.
- Affiliations
- University of Warsaw (PL)
- Venue
- Physical Review A
- Publisher
- American Physical Society (APS)
- Published
- 2012-01-27
- Volume
- 85
- Issue
- 1
- ISSN
- 0556-2791 (ISSN-L)
- 1050-2947
- 1094-1622
- OpenAlex
- W2093689636
- Cited by
- 182
- References
- 33
- Citations by year
- 2026: 7 · 2025: 15 · 2024: 13 · 2023: 12 · 2022: 16 · 2021: 16 · 2020: 25 · 2019: 15 · 2018: 9 · 2017: 14 · 2016: 12 · 2015: 12 · 2014: 9 · 2013: 4 · 2012: 3
- FWCI
- 8.82
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Locations
- Physical Review A (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- arXiv (Cornell University)
- Topics
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum Information and Cryptography
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum Mechanics and Applications
- Physical Sciences › Computer Science › Artificial Intelligence › Quantum Computing Algorithms and Architecture
- Keywords
- quantum interferometry, quantum Fisher information, phase estimation, quantum metrology
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