Generation of different Bell states within the spontaneous parametric down-conversion phase-matching bandwidth
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We study the frequency-angular line shape for a phase-matched nonlinear process producing entangled states and show that there is a continuous variety of maximally entangled states generated for different mismatch values within the natural bandwidth. Detailed considerations are made for two specific methods of polarization entanglement preparation, based on type-II spontaneous parametric down-conversion (SPDC) and on SPDC in two subsequent type-I crystals producing orthogonally polarized photon pairs. It turns out that different Bell states are produced at the center of the SPDC line and on its slopes, corresponding to about half-maximum intensity level. These Bell states can be filtered out by either frequency selection or angular selection, or both. Our theoretical calculations are confirmed by a series of experiments, performed for the two above-mentioned schemes of producing polarization-entangled photon pairs and with two kinds of measurements: frequency selective and angular selective.
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Equations (5.14) and (5.15) are more general than the expression for maximally entangled states of work [21], which follows from (5.15) at φ=0.
“Equations (5.14) and (5.15) are more general than the expression for the maximally entangled states of the work [21], which follows from (5.15”
From Entanglement of biphoton states: qutrits and ququarts (2011) · cites this paper as [21]
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Research works printed but not linked: 4
- [1]M.A. Nielsen and I.L. Chuang, 'Quantum Computation and Quantum Information', Cambridge Univ. press (Cambridge, 2000). D. Bouwmeester et al., 'The physics of Quantum Information', Springer Verlag (Berlin, 2000).
- [3]G. Brida, M.Genovese, M. Gramegna, Laser Physics Letters 3 (2006) 115 and Refs. therein.
- [13]L.J.Wang, C.K.Hong, and S.R.Friberg, J. Opt. B: Quantum and Semiclass. Opt. 3 , 346 (2001); J. E. Sharping, M. Fiorentino, and P. Kumar, Opt. Lett. 26, 367369 (2001); H.Takesue and K.Inoue, Phys. Rev. A 70, 031802(R) (2004); J.G.Rarity et al. , Optics Express, 13 , No 2, 534 (2005).
- [16]G. Brida, M. V. Chekhova, M. Genovese, and L. A. Krivitsky, Phys. Rev. Lett. 96 , 143601 (2006); Phys. Rev. A 75 , 015801 (2007); Journ. of Phys. A, in press.
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Entanglement of biphoton states: qutrits and ququarts
Fedorov, M. V., Volkov, P. A., Mikhailova, J. M., Straupe, S. S., & Kulik, S. P. (2011) · New Journal of Physics · doi:10.1088/1367-2630/13/8/083004 · Cited by 37 · see citing works
- Authors
- Brida, G., Chekhova, M., Genovese, M., & Krivitsky, L.
- Affiliations
- Istituto Nazionale di Ricerca Metrologica (IT)
- Lomonosov Moscow State University (RU)
- Venue
- Physical Review A
- Publisher
- American Physical Society (APS)
- Published
- 2007-11-07
- Volume
- 76
- Issue
- 5
- ISSN
- 0556-2791 (ISSN-L)
- 1050-2947
- 1094-1622
- OpenAlex
- W2046951438
- Cited by
- 29
- References
- 0
- Citations by year
- 2026: 1 · 2023: 2 · 2022: 3 · 2021: 1 · 2020: 1 · 2019: 4 · 2018: 1 · 2017: 1 · 2016: 1 · 2015: 1 · 2013: 2 · 2012: 1
- FWCI
- 3.55
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Locations
- Physical Review A (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- Max Planck Digital Library (submittedVersion)
- CINECA IRIS Institutional Research Information System (IRIS Istituto Nazionale di Ricerca Metrologica) (submittedVersion)
- MPG.PuRe (Max Planck Society) (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 › Photorefractive and Nonlinear Optics
- Keywords
- Bell states, spontaneous parametric down-conversion, phase-matching bandwidth, polarization entanglement, entangled photon pairs, frequency selection
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