XT Quantech — vendor dossier

XT Quantech

QKDEnabling supply chain
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Shanghai Xuntai Quantum Technology Co., Ltd. (上海循态量子科技有限公司, XT Quantech) is a spin-out of the Quantum Sensing and Information Processing (QSIP) group at Shanghai Jiao Tong University, focusing on continuous-variable QKD (CV-QKD) with local-local-oscillator coherent detection — distinct from the discrete-variable BB84 systems fielded by most Chinese QKD vendors. Founded in 2017 in Shanghai, it released its first commercial CV-QKD product in June 2018 and has since expanded to quantum random number generators, security gateways, and coherent detector components. Customers span power, rail transit, gas-utility, and finance sectors in China.

HQ
Minhang District, Shanghai, China
Founded
2017
Status
private
Last verified
Wed Jun 17 2026 08:00:00 GMT+0800 (Singapore Standard Time)

Timeline

2017201820192020202120222023202420252026202720282029today
2017-03
Founded as 上海循态量子科技有限公司 (Shanghai Xuntai Quantum Technology Co., Ltd.) in Minhang District, Shanghai, as a spin-out of the QSIP group at SJTU
2018-06
Released CV-QKD-based quantum key distribution commercial product at 2018 World Mobile Congress Shanghai — described by the company as the first commercial CV-QKD product
2023-01
Joint announcement with SJTU QSIP of next-generation multi-rate multi-protocol CV-QKD system achieving 1–10 Mbps secure key output with real-time protocol switching
2023-02
Wang, T. et al., "Multi-rate and multi-protocol continuous-variable quantum key distribution", Optics Letters 48, 719–722 (2023) — first experimental demonstration of a single CV-QKD system switching between Gaussian, discrete, and one-dimensional modulation protocols at 10–100 MHz
2023-09
Wang, T. et al., "Bidirectional multi-band quantum access network" experimental verification published in Photonics Research (DOI: 10.1364/PRJ.492448) — multi-user CV-QKD access at >600 bps @ 30 km per user
2024-02
Wang, T. et al., "High key rate continuous-variable quantum key distribution using telecom optical components", New Journal of Physics 26 (2024) — Yingming Zhou (XT Quantech) co-author; demonstrates 10.37 Mbps @ 20 km and 58 kbps @ 100 km with Gaussian-modulated LLO CV-QKD
2024-10
Joins China Mobile "Illuminate 100 Cities" quantum test network initiative at China Mobile Partner Conference; separately advances CUBE-Net 3.0 quantum-secure infrastructure collaboration with China Unicom
2024-12
Quantum+OTN integrated fusion solution selected as Shanghai outstanding cryptography application solution
2025
Expand integrated quantum communication terminal deployments across China Mobile and China Unicom carrier networks through the "Illuminate 100 Cities" and CUBE-Net 3.0 quantum-secure infrastructure programmes
shipped milestone public roadmap

Current flagship

CV-QKD LLO transceiver system with multi-protocol support — Gaussian-modulated local-local-oscillator CV-QKD; supports Gaussian, discrete, and one-dimensional modulation with real-time switching; 10–100 MHz repetition rate, 1–10 Mbps secure key output

Milestones

  1. 2024-12
    Quantum+OTN integrated fusion solution selected as Shanghai outstanding cryptography application solution
    QKD press source ↗
  2. 2024-10
    Joins China Mobile "Illuminate 100 Cities" quantum test network initiative at China Mobile Partner Conference; separately advances CUBE-Net 3.0 quantum-secure infrastructure collaboration with China Unicom
    QKD press source ↗
  3. 2024-02
    Wang, T. et al., "High key rate continuous-variable quantum key distribution using telecom optical components", New Journal of Physics 26 (2024) — Yingming Zhou (XT Quantech) co-author; demonstrates 10.37 Mbps @ 20 km and 58 kbps @ 100 km with Gaussian-modulated LLO CV-QKD
    QKD paper source ↗
  4. 2023-09
    Wang, T. et al., "Bidirectional multi-band quantum access network" experimental verification published in Photonics Research (DOI: 10.1364/PRJ.492448) — multi-user CV-QKD access at >600 bps @ 30 km per user
    QKD paper source ↗
  5. 2023-02
    Wang, T. et al., "Multi-rate and multi-protocol continuous-variable quantum key distribution", Optics Letters 48, 719–722 (2023) — first experimental demonstration of a single CV-QKD system switching between Gaussian, discrete, and one-dimensional modulation protocols at 10–100 MHz
    QKD paper source ↗
  6. 2023-01
    Joint announcement with SJTU QSIP of next-generation multi-rate multi-protocol CV-QKD system achieving 1–10 Mbps secure key output with real-time protocol switching
    QKD press source ↗
  7. 2018-06
    Released CV-QKD-based quantum key distribution commercial product at 2018 World Mobile Congress Shanghai — described by the company as the first commercial CV-QKD product
    QKD press source ↗
  8. 2017-03
    Founded as 上海循态量子科技有限公司 (Shanghai Xuntai Quantum Technology Co., Ltd.) in Minhang District, Shanghai, as a spin-out of the QSIP group at SJTU
    QKD blog source ↗

Roadmap

  • 2025 Expand integrated quantum communication terminal deployments across China Mobile and China Unicom carrier networks through the "Illuminate 100 Cities" and CUBE-Net 3.0 quantum-secure infrastructure programmes source ↗

Capability details

QKD

Protocols
CV-QKD, GG02, discrete-modulated CV-QKD, one-dimensional CV-QKD
Rate vs distance
Gaussian-modulated LLO CV-QKD: 10.37 Mbps @ 20 km, 1.61 Mbps @ 50 km, 337 kbps @ 70 km, 58 kbps @ 100 km SMF (NJP 26, 2024; Yingming Zhou co-affiliated with XT Quantech). Multi-protocol system: 1–10 Mbps at 10–100 MHz repetition rate (Optics Letters 48, 719, 2023).
5 unverified fields
  • shareholders
  • milestones — Milestones from 2018–2022 sourced from XT Quantech news archive and SJTU press; no independent press or peer-reviewed confirmation for the June 2018 "first commercial CV-QKD product" claim beyond vendor's own site.
  • modalities.qkd.deployed_demos — China Mobile / Unicom partnership milestones and the SJTU multi-campus field trial sourced from vendor news and academic paper affiliations; no independent third-party coverage or peer-reviewed deployment paper found.
  • modalities.qkd.rate_distance
  • roadmap

People

  • Zeng Guihua (曾贵华) — Chairman & Chief Scientist (since 2017) ↗
  • Wang Chao (汪超) — CEO & Co-founder (since 2017) ↗

References