论文标题
贝尔在超导微波电路中被动态Casimir光子违反不平等
Bell's inequality violation by dynamical Casimir photons in a superconducting microwave circuit
论文作者
论文摘要
我们通过动态casimir辐射研究钟的不平等侵犯，并通过伪旋转测量来研究。我们考虑了电路量子电动力学设置，其中相对移动的镜子通过鱿鱼中可变的外部磁通量模拟，终止超导微波波指导。我们在分析上从系统参数方面进行了分析获得相对于通道方向进行优化的铃铛运算符的期望值。我们考虑微波场模式中局部噪声的影响，非零引起的磁场模式之间的不对称性和信号丢失。我们的分析提供了可以观察到贝尔违规的上述实验参数的范围。我们表明，在此设置中可以观察到违反钟的违规，高达40 MK温度以及最高65％的信号损失。
We study the Bell's inequality violation by dynamical Casimir radiation with pseudospin measurement. We consider a circuit quantum electrodynamical set-up where a relativistically moving mirror is simulated by variable external magnetic flux in a SQUID terminating a superconducting-microwave waveguide. We analytically obtain expectation values of the Bell operator optimized with respect to channel orientations, in terms of the system parameters. We consider the effects of local noise in the microwave field modes, asymmetry between the field modes resulting from nonzero detuning, and signal loss. Our analysis provides ranges of the above experimental parameters for which Bell violation can be observed. We show that Bell violation can be observed in this set-up up to 40 mK temperature as well as up to 65 % signal loss.
