Bell-State-Exchange-Parity-Based Protocol for Efficient Autocompensation of Quantum Key Distribution Encoded in Polarization or Spatial Modes
We analyze autocompensation possibilities in entanglement-based QKD protocols. In particular, we study the seminal BBM92 protocol and find that an autocompensating technique is possible, although with severe limitations. This prompts the introduction of a different, more practical protocol based on...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-12-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/23/12907 |
| _version_ | 1797400425104670720 |
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| author | Gabriel M. Carral Jesús Liñares Eduardo F. Mateo Xesús Prieto-Blanco |
| author_facet | Gabriel M. Carral Jesús Liñares Eduardo F. Mateo Xesús Prieto-Blanco |
| author_sort | Gabriel M. Carral |
| collection | DOAJ |
| description | We analyze autocompensation possibilities in entanglement-based QKD protocols. In particular, we study the seminal BBM92 protocol and find that an autocompensating technique is possible, although with severe limitations. This prompts the introduction of a different, more practical protocol based on Bell state exchange parity (BSEP), which allows for intrinsic autocompensation of optical fiber perturbations in various two-dimensional fiber-optic encodings while retaining advantageous MDI-QKD characteristics. We present the BSEP protocol in detail, describing both the quantum light propagation and the optical hardware requirements. Finally, we analyze its security, computing its expected performance through the key rate. |
| first_indexed | 2024-03-09T01:55:19Z |
| format | Article |
| id | doaj.art-f47f256b10ba419fafc4a4a4a0b16b64 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T01:55:19Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-f47f256b10ba419fafc4a4a4a0b16b642023-12-08T15:12:07ZengMDPI AGApplied Sciences2076-34172023-12-0113231290710.3390/app132312907Bell-State-Exchange-Parity-Based Protocol for Efficient Autocompensation of Quantum Key Distribution Encoded in Polarization or Spatial ModesGabriel M. Carral0Jesús Liñares1Eduardo F. Mateo2Xesús Prieto-Blanco3Optics Area, Department of Applied Physics and iMATUS, Faculty of Physics/Faculty of Optics and Optometry, University of Santiago de Compostela, 15782 Santiago de Compostela, Galicia, SpainOptics Area, Department of Applied Physics and iMATUS, Faculty of Physics/Faculty of Optics and Optometry, University of Santiago de Compostela, 15782 Santiago de Compostela, Galicia, SpainSubmarine Network Division, NEC Corporation, Tokyo 108-8001, JapanOptics Area, Department of Applied Physics and iMATUS, Faculty of Physics/Faculty of Optics and Optometry, University of Santiago de Compostela, 15782 Santiago de Compostela, Galicia, SpainWe analyze autocompensation possibilities in entanglement-based QKD protocols. In particular, we study the seminal BBM92 protocol and find that an autocompensating technique is possible, although with severe limitations. This prompts the introduction of a different, more practical protocol based on Bell state exchange parity (BSEP), which allows for intrinsic autocompensation of optical fiber perturbations in various two-dimensional fiber-optic encodings while retaining advantageous MDI-QKD characteristics. We present the BSEP protocol in detail, describing both the quantum light propagation and the optical hardware requirements. Finally, we analyze its security, computing its expected performance through the key rate.https://www.mdpi.com/2076-3417/13/23/12907quantum key distributionoptical fibersautocompensationspace-division multiplexingphotonic integrated circuits |
| spellingShingle | Gabriel M. Carral Jesús Liñares Eduardo F. Mateo Xesús Prieto-Blanco Bell-State-Exchange-Parity-Based Protocol for Efficient Autocompensation of Quantum Key Distribution Encoded in Polarization or Spatial Modes Applied Sciences quantum key distribution optical fibers autocompensation space-division multiplexing photonic integrated circuits |
| title | Bell-State-Exchange-Parity-Based Protocol for Efficient Autocompensation of Quantum Key Distribution Encoded in Polarization or Spatial Modes |
| title_full | Bell-State-Exchange-Parity-Based Protocol for Efficient Autocompensation of Quantum Key Distribution Encoded in Polarization or Spatial Modes |
| title_fullStr | Bell-State-Exchange-Parity-Based Protocol for Efficient Autocompensation of Quantum Key Distribution Encoded in Polarization or Spatial Modes |
| title_full_unstemmed | Bell-State-Exchange-Parity-Based Protocol for Efficient Autocompensation of Quantum Key Distribution Encoded in Polarization or Spatial Modes |
| title_short | Bell-State-Exchange-Parity-Based Protocol for Efficient Autocompensation of Quantum Key Distribution Encoded in Polarization or Spatial Modes |
| title_sort | bell state exchange parity based protocol for efficient autocompensation of quantum key distribution encoded in polarization or spatial modes |
| topic | quantum key distribution optical fibers autocompensation space-division multiplexing photonic integrated circuits |
| url | https://www.mdpi.com/2076-3417/13/23/12907 |
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