论文标题
将中性原子冷却为Rydberg封锁制度中的最大纠缠
Cooling neutral atoms into maximal entanglement in the Rydberg blockade regime
论文作者
论文摘要
我们提出了一个冷却方案，以通过定期集体激光泵送和耗散组合来制备Rydberg封锁状态中中性原子的固定纠缠。在每个周期中，受控的统一动力学过程可以选择性地将原子从非目标状态下泵送，同时保持目标状态不变。随后的耗散过程通过工程自发的发射重新分布了基态的种群。经过多个循环后，系统将最终稳定到所需的稳态中，而不是初始状态。该方案不依赖于单个中性原子的一致解决或对Rydberg相互作用强度的精细控制，这原理可以大大提高相关领域实验的可行性。
We propose a cooling scheme to prepare stationary entanglement of neutral atoms in the Rydberg blockade regime by combination of periodically collective laser pumping and dissipation. In each cycle, the controlled unitary dynamics process can selectively pump atoms away from the non-target state while maintaining the target state unchanged. The subsequent dissipative process redistributes the populations of ground states through the engineered spontaneous emission. After a number of cycles, the system will be eventually stabilized into the desired steady state independent of the initial state. This protocol does not rely on coherent addressing of individual neutral atoms or fine control of Rydberg interaction intensity, which can in principle greatly improve the feasibility of experiments in related fields.
