Skip to content
DraconiticResearch
Search Sources API
203,203 studies31 sourcesUpdated 27 min ago
Peer-reviewedCC BY 4.0New Journal of Physics

Coherent receiver for Continuous-Variable Quantum Key Distribution using a 3 × 3 beam splitter and single-ended photodetectors

  • Pol Adillon1
  • Samael Sarmiento1
  • Jeison Tabares1
  • Hugues de Riedmatten2
  • Sebastian Etcheverry1
  1. 1LuxQuanta Technologies S.L.Hospitalet de Llobregat
  2. 2Institut de Ciencies Fotoniques
Open at sourcePDFDOICite

Abstract

Continuous-variable quantum key distribution relies on coherent detection. Conventional coherent receivers typically use an optical 90° hybrid and two balanced photodetectors providing robust phase-diversity detection. Here, we introduce and characterize a simplified receiver architecture based on a symmetric 3 × 3 beam splitter and three single-ended photodetectors for continuous-variable quantum key distribution. Results demonstrate that the 3 × 3 beam splitter-based architecture provides similar performance to conventional ones while reducing optical-hardware complexity.

Related

  1. A robust digital receiver architecture for continuous-variable quantum key distribution
    Lu Fan, Xuesong Xu, Miao Yu +6
    arXivPreprintarXiv licenceFull textQuantum physics & quantum informationarXiv
  2. Wavelength-shifting attack on a chip-based continuous-variable quantum key distribution system
    Yiyu Mao, Yuhao Liu, Jing Li +2
    Optics ExpressPeer-reviewedPublisher termsOptics & photonicsCrossref
  3. Continuous variable quantum key distribution through a fading channel with minimal information leakage
    Josephine Dias, Timothy C. Ralph
    arXivPreprintarXiv licenceFull textQuantum physics & quantum informationarXiv
  4. Deterministic Minimum-Leakage Continuous-Variable Quantum Key Distribution with Phase-Conjugated Twin Beams
    Zhenlin Zhao, Dawei Wang
    arXivPreprintCC BY 4.0Full textQuantum physics & quantum informationarXiv
  5. Multiplexing of Continuous-Variable and Discrete-Variable Quantum Key Distribution Systems over Fibered and Free-Space Channels
    Mattia Sabatini, Edoardo Rossi, Matías R. Bolaños +7
    HALPreprintCC BY 4.0Full textQuantum physics & quantum informationHAL

Cite

BibTeXRIS
BibTeX
@article{adillon2026coherent,
  title = {{Coherent receiver for Continuous-Variable Quantum Key Distribution using a 3 × 3 beam splitter and single-ended photodetectors}},
  author = {Pol Adillon and Samael Sarmiento and Jeison Tabares and Hugues de Riedmatten and Sebastian Etcheverry},
  journal = {New Journal of Physics},
  year = {2026},
  month = oct,
  doi = {10.1088/1367-2630/aeb153},
  url = {https://iopscience.iop.org/article/10.1088/1367-2630/aeb153},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - Coherent receiver for Continuous-Variable Quantum Key Distribution using a 3 × 3 beam splitter and single-ended photodetectors
AU  - Pol Adillon
AU  - Samael Sarmiento
AU  - Jeison Tabares
AU  - Hugues de Riedmatten
AU  - Sebastian Etcheverry
PY  - 2026
DA  - 2026/10/07
JO  - New Journal of Physics
DO  - 10.1088/1367-2630/aeb153
UR  - https://iopscience.iop.org/article/10.1088/1367-2630/aeb153
AB  - Continuous-variable quantum key distribution relies on coherent detection. Conventional coherent receivers typically use an optical 90° hybrid and two balanced photodetectors providing robust phase-diversity detection. Here, we introduce and characterize a simplified receiver architecture based on a symmetric 3 × 3 beam splitter and three single-ended photodetectors for continuous-variable quantum key distribution. Results demonstrate that the 3 × 3 beam splitter-based architecture provides similar performance to conventional ones while reducing optical-hardware complexity.
SN  - 1367-2630
ER  -