论文标题
非经典时间相关性在为量子随机访问代码供电中的作用
Role of nonclassical temporal correlation in powering quantum random access codes
论文作者
论文摘要
我们探讨了随机访问代码背后的量子优势的基本起源。我们提出了与非侵入性现实主义模型兼容的新的时间不平等现象，并表明在存在共同随机性的情况下编码为1位随机访问代码的任何非零量子优势等同于违反相应的时间不等式。作为这种联系的直接结果，我们还证明，当实现对相应的不平等的最大侵犯时，可以获得编码为1位随机访问代码的N位的最大成功概率。然后，我们表明，编码为1位随机访问代码的N位的任何非零量子优势，或者换句话说，任何非零违反对相应的时间不平等的行为都可以证明真实的随机性。
We explore the fundamental origin of the quantum advantage behind random access code. We propose new temporal inequalities compatible with noninvasive-realist models and show that any non-zero quantum advantage of n bits encoded to 1-bit random access code in the presence of shared randomness is equivalent to the violation of the corresponding temporal inequality. As an immediate consequence of this connection, we also prove that the maximal success probability of n bits encoded to 1-bit random access code can be obtained when the maximal violation of the corresponding inequality is achieved. We then show that any non-zero quantum advantage of n bits encoded to 1-bit random access code, or in other words, any non-zero violation of the corresponding temporal inequality can certify genuine randomness.
