论文标题
半设备独立量子随机数发生器的数值框架
Numerical Framework for Semi-Device-Independent Quantum Random Number Generators
论文作者
论文摘要
量子随机数发生器（QRNG）是量子加密中最广泛的分支之一。在所有QRNG方案中，半设备独立的（半二）QRNG非常有前途，可以达到高随机性产生率，而在设备上很少有假设。对于QRNG研究的中心任务 - 安全分析，数值方法因其对各种半二QRNG方案的一般性而受欢迎。在这里，我们为一般半DI QRNG的有限尺寸安全性制定了一个数值框架，该框架的安全性下限是有限尺寸的随机性生成速率与一般攻击的。我们将光学半DI QRNG的一个简单示例视为我们框架的应用。
Quantum random number generator (QRNG) is one of the most widely applied branches in quantum cryptography. Among all QRNG schemes, semi-device-independent (semi-DI) QRNG is quite promising, achieving high randomness generation rate with few assumptions on the devices. For the central task of a QRNG study -- security analysis, numerical approaches become popular for its generality to various semi-DI QRNG schemes. Here we formulate a numerical framework for the finite-size security of general semi-DI QRNGs, which gives a secure lower bound of the finite-size randomness generation rate against general attacks. We consider a simple example of an optical semi-DI QRNG as an application of our framework.
