Spatial correlations of one-dimensional driven-dissipative systems of Rydberg atoms
Spatial correlations of one-dimensional driven-dissipative systems of Rydberg atoms
复制标题
DOI：
10.1103/physreva.88.053627
复制
发表时间：
2013-11-22
影响因子：
2.9
通讯作者：
Clark, Charles W.
中科院分区：
文献类型：
--
作者：
Hu, Anzi;Lee, Tony E.;Clark, Charles W.
我们考虑激光激发到里德堡态并自发辐射的一维原子晶格。由于里德堡态的偶极-偶极相互作用，原子相互作用。这种驱动耗散系统具有广泛的非平衡相，如反铁磁有序和双稳。利用量子轨道方法，我们计算了多达18个晶格点的参数空间的空间关联函数。我们发现，双稳态显著地增强了空间关联和纠缠。
We consider a one-dimensional lattice of atoms with laser excitation to a Rydberg state and spontaneous emission. The atoms are coupled due to the dipole-dipole interaction of the Rydberg states. This driven-dissipative system has a broad range of nonequilibrium phases, such as antiferromagnetic ordering and bistability. Using the quantum trajectory method, we calculate the spatial correlation function throughout the parameter space for up to 18 lattice sites. We show that bistability significantly strengthens the spatial correlations and the entanglement.