论文标题
质量无关的方案，用于增强空间量子叠加
Mass-independent scheme for enhancing spatial quantum superpositions
论文作者
论文摘要
将大质量放在大型的空间叠加中，例如schrödinger猫状态是一个重大而重要的挑战。特别是，大空间叠加（$ {\ cal o}（10-100）$ $ $ m $ m）的介质群众（$ M \ sim {\ sim {\ cal o}（10^{ - 14} -10^{ - 15}）$迄今为止，实现这种空间离域化的提出的方法是使用波袋扩展或量子辅助作用（例如自旋）依赖力，所有功效都随质量而降低。因此，独立于质量的空间分裂增加是一个重要的开放挑战。在本文中，我们提出了一种通过持续携带的电线来实现叠加的质量叠加增强的方法。我们分析了一个示例系统，该系统使用船尾式效果来创建一个小的初始分裂，然后应用Diamagnetic排斥方法来增强叠加尺寸$ {\ cal o}（\ cal o}（400-600）$ $ $ $ $ $ m $ m $ m $ m $ m $ m $ m $ m $ m $ m $ m $ m $ m $ m $ m $ m $ m $ m $ m $ m $ m $ m $ m $ m $ m $ $ $ m $ $ m $ m $ m $ $ m $ m $ m $ $ $ m $ m $ $ $ m $ $ m $ $ $ $ $ $ $ $ $ m $ $ $ $ $ $ $ $ m $。我们提供了对我们方案的分析和数字分析。
Placing a large mass in a large spatial superposition, such as a Schrödinger Cat state is a significant and important challenge. In particular, the large spatial superposition (${\cal O}(10-100)$ $μ$m) of mesoscopic masses ($m\sim {\cal O}(10^{-14} -10^{-15})$ kg) makes it possible to test the quantum nature of gravity via entanglement in the laboratory. To date, the proposed methods of achieving this spatial delocalization are to use wavepacket expansions or quantum ancilla (for example spin) dependent forces, all of whose efficacy reduces with mass. Thus increasing the spatial splitting independent of the mass is an important open challenge. In this paper, we present a method of achieving a mass-independent enhancement of superposition via diamagnetic repulsion from current-carrying wires. We analyse an example system which uses the Stern-Gerlach effect to creating a small initial splitting, and then apply the diamagnetic repulsion method to enhance the superposition size ${\cal O}(400-600)$ $μ$m from an initial modest split of the wavefunction. We provide an analytic and numeric analysis of our scheme.
