论文标题
量子安全性和破坏理论
Quantum security and theory of decoherence
论文作者
论文摘要
我们概述了量子信息研究中两个至关重要但独立的领域之间的关系，即。量子分解和量子密码学。我们在这里调查了屏蔽实验室的标准加密假设如何指出，除非明确公布，否则安全的量子设备产生的数据仍被量子darwinism的Einselection机制所打扰，以解释通过与外部环境相互作用来解释测量过程。我们用一个量子随机数生成器的范式示例来说明这个想法，该量子被van eck phreaking损害了。特别是，我们得出了窃听的猜测概率$ p_ {guess} $与简单形式的$ p_ {guess} +γ\ geq 1 $的集体反应因子$γ$之间的权衡关系。
We sketch a relation between two crucial, yet independent, fields in quantum information research, viz. quantum decoherence and quantum cryptography. We investigate here how the standard cryptographic assumption of shielded laboratory, stating that data generated by a secure quantum device remain private unless explicitly published, is disturbed by the einselection mechanism of quantum Darwinism explaining the measurement process by interaction with the external environment. We illustrate the idea with a paradigmatic example of a quantum random number generator compromised by an analog of the Van Eck phreaking. In particular, we derive a trade-off relation between eavesdropper's guessing probability $P_{guess}$ and the collective decoherence factor $Γ$ of the simple form $P_{guess} + Γ\geq 1$.
