Source-Device-Independent Ultrafast Quantum Random Number Generation
Source-Device-Independent Ultrafast Quantum Random Number Generation
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DOI：
10.1103/physrevlett.118.060503
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发表时间：
2017-02-08
影响因子：
8.6
通讯作者：
Villoresi, Paolo
中科院分区：
文献类型：
--
作者：
Marangon, Davide G.;Vallone, Giuseppe;Villoresi, Paolo
安全随机数是科学、统计学、密码学以及安全协议中许多应用程序的基本元素。我们提出了一种方法，可以从电磁场的正交中产生高速不可预测的随机数，而无需对输入状态进行任何假设。该方法允许我们消除由于经典和量子侧信息的存在而可以预测的数字。特别地，我们介绍了一种基于熵不确定性原理估计无限维量子系统的位置和动量观测值的条件最小熵界的方法。通过上述方法，我们实验证明了以大于1.7 Gbit/s的速率生成安全的真随机比特。
Secure random numbers are a fundamental element of many applications in science, statistics, cryptography and more in general in security protocols. We present a method that enables the generation of high-speed unpredictable random numbers from the quadratures of an electromagnetic field without any assumption on the input state. The method allows us to eliminate the numbers that can be predicted due to the presence of classical and quantum side information. In particular, we introduce a procedure to estimate a bound on the conditional min-entropy based on the entropic uncertainty principle for position and momentum observables of infinite dimensional quantum systems. By the above method, we experimentally demonstrated the generation of secure true random bits at a rate greater than 1.7 Gbit/s.