论文标题
可扩展的非上下文性不平等和多Quantum量子系统的认证
Scalable noncontextuality inequalities and certification of multiqubit quantum systems
论文作者
论文摘要
我们提出了一个非上下文性不平等的家族，并表明它们可用于多Qualbit量子系统的认证。与基于非本地性的计划不同，我们的计划不需要子系统之间的空间分离，但它利用了测量之间的某些兼容性关系。此外，从某种意义上说，可以衡量的期望值数量与正在认证的量子数的数量进行多个量表的数量来衡量的期望值数量。在特定情况下，我们还表明我们的方案是强大的错误和实验缺陷。就物理设置的认证而言，在无法保证子系统之间的空间分离的情况下，我们的结果似乎很有希望。
We propose a family of noncontextuality inequalities and show that they can be used for certification of multiqubit quantum systems. Our scheme, unlike those based on non-locality, does not require spatial separation between the subsystems, yet it makes use of certain compatibility relations between measurements. Moreover, it is scalable in the sense that the number of expectation values that are to be measured to observe contextuality scales polynomially with the number of qubits that are being certified. In a particular case we also show our scheme to be robust errors and experimental imperfections. Our results seem promising as far as certification of physical set-ups is concerned in scenarios where spatial separation between the subsystems cannot be guaranteed.
