Engineering the Indistinguishability and Entanglement of Two Photons
Abstract
We present a novel interferometric technique for suppressing distinguishing information in the space-time component of the state vector of an entangled pair of photons by providing two indistinguishable ways for each photon to occupy any given space-time mode. We demonstrate this method by using spontaneous parametric down-conversion to generate a pair of photons in the state with the least distinguishing information consistent with the set of modes available. The technique also allows the preparation of the two photons in a highly entangled space-time state provided certain criteria are met.
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Methods used to increase quantum interference visibility include: (i) a thin nonlinear crystal, (ii) narrow-band spectral filters in front of detectors, or (iii) an interferometric technique without spectral and amplitude post-selection.
“The following methods are used to increase the quantum interference visibility: (i) a thin nonlinear crystal (Sergienko et al., 1999), (ii) narrow-band spectral filters in front of detectors, as shown above (Grice and Walmsley, 1997;Grice et al., 1998;Di Giuseppe et al., 1997), or (iii) an interferometric technique (Branning et al., 1999(Branning et al., , 2000) ) without spectral and amplitude”
From Multiphoton entanglement and interferometry (2012) · cites this paper as Branning et al., 1999
Cites
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Measurement of subpicosecond time intervals between two photons by interference
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Can Two-Photon Interference be Considered the Interference of Two Photons?
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Multiphoton entanglement and interferometry
Pan, J.-W., Chen, Z.-B., Lu, C.-Y., Weinfurter, H., Zeilinger, A., & Żukowski, M. (2012) · Reviews of Modern Physics · doi:10.1103/revmodphys.84.777 · Cited by 1,410 · see citing works
“…(ii) to use narrow-band spectral filters in front of detectors, as shown above (Grice and Walmsley, 1997; Grice et al., 1998; Di Giuseppe et al., 1997), or (iii) to use an interferometric technique (Branning et al., 1999, 2000) without spectral and amplitude post-selection (Kim et al., 2001).”
MethodSpectral structure and decompositions of optical states, and their applications
Rohde, P. P., Mauerer, W., & Silberhorn, C. (2007) · New Journal of Physics · doi:10.1088/1367-2630/9/4/091 · Cited by 109 · see citing works
- Authors
- Branning, D., Grice, W. P., Erdmann, R., & Walmsley, I. A.
- Affiliations
- University of Rochester (US)
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 1999-08-02
- Volume
- 83
- Issue
- 5
- Pages
- 955-958
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2057701992
- Cited by
- 84
- References
- 6
- Citations by year
- 2026: 1 · 2024: 1 · 2023: 3 · 2022: 4 · 2021: 7 · 2020: 2 · 2019: 1 · 2018: 1 · 2017: 2 · 2016: 2 · 2015: 4 · 2014: 2 · 2013: 3 · 2012: 3
- FWCI
- 5.79
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Physical Review Letters (publishedVersion)
- Topics
- Physical Sciences › Computer Science › Artificial Intelligence › Quantum Information and Cryptography
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum Mechanics and Applications
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum optics and atomic interactions
- Keywords
- photon indistinguishability, entangled photon pairs, spontaneous parametric down-conversion, quantum state preparation
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