IL320669A - Quantum key exchange in a free medium - Google Patents

Quantum key exchange in a free medium

Info

Publication number
IL320669A
IL320669A IL320669A IL32066925A IL320669A IL 320669 A IL320669 A IL 320669A IL 320669 A IL320669 A IL 320669A IL 32066925 A IL32066925 A IL 32066925A IL 320669 A IL320669 A IL 320669A
Authority
IL
Israel
Prior art keywords
bin
time
arms
interferometer
imbalanced interferometer
Prior art date
Application number
IL320669A
Other languages
English (en)
Hebrew (he)
Inventor
Nitzan Livneh
Hagai Shmuel Eisenberg
Original Assignee
Heqa Security Ltd
Nitzan Livneh
Hagai Shmuel Eisenberg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Heqa Security Ltd, Nitzan Livneh, Hagai Shmuel Eisenberg filed Critical Heqa Security Ltd
Publication of IL320669A publication Critical patent/IL320669A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/70—Photonic quantum communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
    • H04B10/112—Line-of-sight transmission over an extended range
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/516—Details of coding or modulation
    • H04B10/532—Polarisation modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/516—Details of coding or modulation
    • H04B10/54—Intensity modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/516—Details of coding or modulation
    • H04B10/548—Phase or frequency modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0852—Quantum cryptography

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
  • Optical Communication System (AREA)
  • Instruments For Measurement Of Length By Optical Means (AREA)
IL320669A 2022-12-05 2023-12-05 Quantum key exchange in a free medium IL320669A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US202263430145P 2022-12-05 2022-12-05
US202363542421P 2023-10-04 2023-10-04
PCT/IL2023/051248 WO2024121850A1 (en) 2022-12-05 2023-12-05 Quantum key distribution free space optical communication

Publications (1)

Publication Number Publication Date
IL320669A true IL320669A (en) 2025-07-01

Family

ID=89190649

Family Applications (1)

Application Number Title Priority Date Filing Date
IL320669A IL320669A (en) 2022-12-05 2023-12-05 Quantum key exchange in a free medium

Country Status (4)

Country Link
EP (1) EP4631192A1 (de)
KR (1) KR20250117661A (de)
IL (1) IL320669A (de)
WO (1) WO2024121850A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118921124B (zh) * 2024-07-19 2025-09-19 中国电子科技集团有限公司电子科学研究院 量子态编码装置、方法及软件定义的量子通信系统
CN118971986B (zh) * 2024-07-19 2025-09-23 中国电子科技集团有限公司电子科学研究院 量子态解码装置、方法及软件定义的量子通信系统
WO2026016196A1 (zh) * 2024-07-19 2026-01-22 中国电子科技集团有限公司电子科学研究院 时间相位编码装置、方法及量子通信系统
CN118921123B (zh) * 2024-07-19 2025-09-23 中国电子科技集团有限公司电子科学研究院 量子态解码装置、方法及软件定义的量子通信系统
CN118921125B (zh) * 2024-07-19 2025-09-19 中国电子科技集团有限公司电子科学研究院 量子态编码装置、方法及软件定义的量子通信系统
WO2026016199A1 (zh) * 2024-07-19 2026-01-22 中国电子科技集团有限公司电子科学研究院 量子态编解码装置、方法及软件定义的量子通信系统
WO2026044790A1 (zh) * 2024-09-02 2026-03-05 中国电子科技集团有限公司电子科学研究院 量子态编码装置、方法及软件定义的量子通信系统
CN119182466B (zh) * 2024-09-02 2026-01-02 中国电子科技集团有限公司电子科学研究院 量子态编码装置、方法及软件定义的量子通信系统

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080198437A1 (en) * 2006-08-18 2008-08-21 Massachusetts Institute Of Technology Converting optical information encoding
JP5003142B2 (ja) 2006-12-22 2012-08-15 日本電気株式会社 偏光コーディング−位相コーディング間変換装置及びこれを用いた量子通信システム
JP5590601B2 (ja) 2010-01-14 2014-09-17 独立行政法人情報通信研究機構 縺れ光源のタイムビン偏光フォーマット変換技術
EP3357177B1 (de) * 2015-10-02 2020-06-17 Nokia Technologies Oy Doppelschienenkompensation in phasenverschlüsselter kommunikation
CN107070655A (zh) 2017-05-24 2017-08-18 中国电子科技集团公司电子科学研究院 一种偏振和相位纠缠编码方法、装置和量子密钥分配系统
EP3742664A1 (de) 2019-05-23 2020-11-25 ID Quantique S.A. System und verfahren zur quantenschlüsselverteilung über einen hybriden quantenkanal
GB2607106B (en) * 2021-05-28 2024-04-17 Toshiba Kk An emitter, communication system and method
CN113810191B (zh) 2021-10-29 2023-10-27 武汉船舶通信研究所（中国船舶重工集团公司第七二二研究所） 基于圆偏光的量子密钥分发系统、编码器、解码器及方法

Also Published As

Publication number Publication date
KR20250117661A (ko) 2025-08-05
EP4631192A1 (de) 2025-10-15
WO2024121850A1 (en) 2024-06-13

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