论文标题
宏观物体的量子叠加的要求
Requirements on Quantum Superpositions of Macro-Objects for Sensing Neutrinos
论文作者
论文摘要
我们检查了两个空间分离的局部状态作为弱相互相对论颗粒流的检测器的量子叠加中的宏观系统。我们使用中微子的中微子中微子中微子核散射的中微子的明确示例，其中具有MEV规模的能量散射。假设（抗）中微子源是核裂变反应器，我们利用了估计的通量和相干的弹性中微子核沿截面来限制空间分离$δ$Δ$ x并描述传感系统的时间演化。特别是，我们发现，在足够的冷却和背景抑制作用下，将量子超级分量之间的潜在可测量的相对相位在空间成分的叠加中获得了$ 10^{-14} $ m的空间组件的叠加。
We examine a macroscopic system in a quantum superposition of two spatially separated localized states as a detector for a stream of weakly interacting relativistic particles. We do this using the explicit example of neutrinos with MeV-scale energy scattering from a solid object via neutral-current neutrino-nucleus scattering. Presuming the (anti-)neutrino source to be a nuclear fission reactor, we utilize the estimated flux and coherent elastic neutrino-nucleus cross section to constrain the spatial separation $Δ$x and describe the temporal evolution of the sensing system. Particularly, we find that a potentially measurable relative phase between quantum superposed components is obtained for a single gram scale mass placed in a superposition of spatial components separated by $10^{-14}$m under sufficient cooling and background suppression.
