论文标题
通过量子随机数生成检测时间相关
Detecting Temporal Correlation via Quantum Random Number Generation
论文作者
论文摘要
所有计算设备，包括量子计算机，都必须表明，对于给定输入，根据程序产生输出。但是，由量子计算机生成的输出满足这些要求并不在时间上相关。在包含固态Qubit的量子计算设备（例如超导Qubit）中，任何将Qubits放在其初始状态的操作都面临实际问题。我们使用最简单的随机数生成方案将统计分析应用于从20克超导量云计算机输出的随机数集合中。该分析表明从20 QUBITS获得的某些序列的输出中的时间相关性。这种时间相关与每个量子的放松时间无关。我们得出结论，相关性可能是系统误差的结果。
All computing devices, including quantum computers, must exhibit that for a given input, an output is produced in accordance with the program. The outputs generated by quantum computers that fulfill these requirements are not temporally correlated, however. In a quantum-computing device comprising solid-state qubits such as superconducting qubits, any operation to rest the qubits to their initial state faces a practical problem. We applied a statistical analysis to a collection of random numbers output from a 20-qubit superconducting-qubit cloud quantum computer using the simplest random number generation scheme. The analysis indicates temporal correlation in the output of some sequences obtained from the 20 qubits. This temporal correlation is not related to the relaxation time of each qubit. We conclude that the correlation could be a result of a systematic error.
