Scholarlink

<p>Two-way quantum key distribution (TWQKD) holds great potential for achieving high secure key rates over a certain transmission distance range. However, in practice, flaws in measurement detectors (the primary source of security loopholes) in TWQKD are vulnerable to side-channel attacks, potentially leading to undetectable key leakage. To tackle this problem and enhance the key performance of TWQKD, this paper introduces a measurement-device-independent high-dimensional TWQKD protocol (MDI-HD-TWQKD). The security formula for this protocol is derived, and its key performances are simulated under an imperfect devices model based on current technology. The results indicate that TWQKD can deliver high performance when utilizing high-dimensional sources in the measurement-device-independent scenario.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Measurement-device-independent high-dimensional two-way quantum key distribution

  • 期刊论文

  • 发表日期：

    2026年1月22日

查看全文
  • Guo-Dong Kang,
  • Xiao-Lu Wu,
  • Ting Zhang,
  • Jie Liu,
  • Mao-Fa Fang

摘要

Two-way quantum key distribution (TWQKD) holds great potential for achieving high secure key rates over a certain transmission distance range. However, in practice, flaws in measurement detectors (the primary source of security loopholes) in TWQKD are vulnerable to side-channel attacks, potentially leading to undetectable key leakage. To tackle this problem and enhance the key performance of TWQKD, this paper introduces a measurement-device-independent high-dimensional TWQKD protocol (MDI-HD-TWQKD). The security formula for this protocol is derived, and its key performances are simulated under an imperfect devices model based on current technology. The results indicate that TWQKD can deliver high performance when utilizing high-dimensional sources in the measurement-device-independent scenario.