Quantum state engineering with ququarts: Application for deterministic QKD protocol
Open accessAbstract
We discuss the proof-of-principle demonstration of the extended deterministic Quantum Key Distribution (QKD) protocol based on ququarts. The experimental realization is based on the polarization degrees of freedom of two-mode biphotons, making the process of state preparation, transformation and measurement rather simple. The scheme uses only single nonlinear crystal for biphoton generation and linear optical elements for their following transformation and can be used as a base for further practical applications.
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Single-photon encoded ququart states could be adopted for the implementation of a quantum key distribution protocol without a reference frame recently proposed in [21,22].
“In particular, single-photon encoded ququart states could be adopted for the implementation of a quantum key distribution protocol without a reference frame recentely proposed [21,22]”
From Experimental generation and characterization of single-photon hybrid ququarts based on polarization and orbital angular momentum encoding (2010) · cites this paper as [21]
The Abstract describes a ququart-based QKD demonstration, but specifies that its ququarts use the polarization degrees of freedom of two-mode biphotons, not single photons. Neither the Abstract nor the Conclusion describes a reference-frame-free protocol; the Conclusion identifies the demonstrated scheme as six-state deterministic QKD. (LLM, conf=0.86)
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References 34 · Cited by 11
- Authors
- Shurupov, A. P., Straupe, S. S., Kulik, S. P., Gharib, M., & Wahiddin, M. R. B.
- Affiliations
- Lomonosov Moscow State University (RU)
- International Islamic University Malaysia (MY)
- Venue
- EPL (Europhysics Letters)
- Publisher
- IOP Publishing
- Published
- 2009-07-01
- Volume
- 87
- Issue
- 1
- Pages
- 10008
- ISSN
- 0295-5075 (ISSN-L)
- 1286-4854
- OpenAlex
- W2041454378
- Cited by
- 11
- References
- 34
- Citations by year
- 2022: 2 · 2021: 1 · 2014: 1 · 2012: 3
- FWCI
- 2.53
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Europhysics Letters (EPL) (publishedVersion)
- Springer Link (Chiba Institute of Technology) (submittedVersion)
- Funders
- Russian Foundation for Basic Research
- 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 › Semiconductor Quantum Structures and Devices
- Keywords
- quantum state engineering, ququarts, biphotons, two-mode entanglement, state preparation and measurement, nonlinear optical crystals, linear optics
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