Conditional preparation of maximal polarization entanglement
Open accessAbstract
A simple experimental setup consisting of a spontaneous parametric down-conversion source and passive linear optics is proposed for conditional preparation of a maximally entangled polarization state of two photons. Successful preparation is unambiguously heralded by coincident detection of four auxiliary photons. The proposed scheme utilizes the down-conversion term corresponding to the generation of three pairs of photons. We analyze imperfect detection of the auxiliary photons and demonstrate that its deleterious effect on the fidelity of the prepared state can be suppressed at the cost of decreasing the efficiency of the scheme.
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Sliwa et al. (2003) proposed a scheme of generating triggered photon pairs that does not need true single photon sources but relies on SPDC.
“Another scheme of generating triggered photon pairs, which does not need true single photon sources but totally tests upon SPDC, was proposed by Sliwa et al. (2003).”
From Multiphoton entanglement and interferometry (2012) · cites this paper as Sliwa et al. (2003)
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References 25 · Cited by 72
- Authors
- Śliwa, C., & Banaszek, K.
- Affiliations
- Center for Theoretical Physics (PL)
- University of Oxford (GB)
- Venue
- Physical Review A
- Publisher
- American Physical Society (APS)
- Published
- 2003-03-26
- Volume
- 67
- Issue
- 3
- ISSN
- 0556-2791 (ISSN-L)
- 1050-2947
- 1094-1622
- OpenAlex
- W2038397098
- Cited by
- 72
- References
- 25
- Citations by year
- 2026: 5 · 2025: 3 · 2024: 1 · 2023: 6 · 2022: 1 · 2021: 3 · 2020: 4 · 2019: 2 · 2018: 1 · 2017: 2 · 2016: 2 · 2015: 5 · 2014: 2 · 2013: 5 · 2012: 2
- FWCI
- 3.91
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Locations
- Physical Review A (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- CERN Document Server (European Organization for Nuclear Research) (submittedVersion)
- arXiv (Cornell University)
- Topics
- Physical Sciences › Computer Science › Artificial Intelligence › Quantum Information and Cryptography
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum optics and atomic interactions
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum Mechanics and Applications
- Keywords
- conditional state preparation, two-photon entanglement, spontaneous parametric down-conversion, imperfect detection, state fidelity
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