论文标题
量子适应性测试与准稳定性功能的量子相关性
Noise-adaptive test of quantum correlations with quasiprobability functions
论文作者
论文摘要
我们介绍了一种在存在噪声的情况下根据准生产函数来测试量子相关性的方法。我们分析了测量缺陷和热环境对量子相关性的影响，并表明它们的噪声效应可以很好地封装在广义准方法函数的顺序参数的变化中。然后，我们通过使用广义的准综合性函数以铃铛型不平等的形式提出噪声自适应的纠缠见证人。值得注意的是，它使我们能够在严重的噪声下观察量子相关。我们的方法提供了一种有用的工具，可以在近期嘈杂的量子处理器中与连续变量系统测试量子相关性。
We introduce a method for testing quantum correlations in terms of quasiprobability functions in the presence of noise. We analyze the effects of measurement imperfection and thermal environment on quantum correlations and show that their noise effects can be well encapsulated into the change of the order parameter of the generalized quasiprobability function. We then formulate a noise-adaptive entanglement witness in the form of a Bell-type inequality by using the generalized quasiprobability function. Remarkably, it allows us to observe quantum correlations under severe noise. Our method provides a useful tool to test quantum correlations in near-term noisy quantum processors with continuous-variable systems.
