论文标题
谐波颗粒中的重力量子
Quantumness of gravity in harmonically trapped particles
论文作者
论文摘要
这项研究从质量能量等效的角度研究了原子干涉仪的设置下的重力量子。考虑到具有内部能级的粒子在谐波捕获电势中具有内部能级的粒子，我们评估了干扰可见性。根据结果，对于在空间上超级重力源质量的质量，干扰可见性表现出崩溃和复兴行为，这意味着初始可分离的内部状态就质量中心，内部能级，内部能量水平和外部源状态的自由度演变为纠缠状态。特别是，当将重力视为量子相互作用时，它不会表现出复兴的行为，而在重力治疗的有限时期则复活。我们还检查了纠缠负效应的时间行为，发现可见性的非复活行为反映了内部能量状态与外部源状态之间的纠缠创造，这是根据弱等价原则的重力相互作用而引起的。
This study investigates the quantumness of gravity under the setup of the atomic interferometry from the viewpoint of mass-energy equivalence. We evaluated interference visibility considering a particle with internal energy levels in a harmonic trapping potential. As per the result, for a spatially superposed gravitational source mass, interference visibility exhibits collapse and revival behavior, which implies that an initial separable internal state evolves to the entangled state with respect to the degrees of freedom of the center of mass, the internal energy levels, and the external source state. In particular, it does not exhibit revival behavior when gravity is treated as a quantum interaction, while it revives with a finite period for a semiclassical treatment of gravity. We also examined the temporal behavior of entanglement negativity and found that the nonrevival behavior of visibility reflects the creation of the entanglement between the internal energy state and the external source state which is uniquely induced by the quantum interaction of gravity in accordance with the weak equivalence principle.
