论文标题
由极化选择引起的波导中的不完全自发衰变
Incomplete spontaneous decay in a waveguide caused by polarization selection
论文作者
论文摘要
真空储层的空间结构基本上改变了波导中激发原子的自发衰变。考虑到量子信息科学的一系列应用，这尤其令人兴奋。我们发现自发衰减可能是不完整的，因此在原子过渡频率大于波导的截止频率并且远离切割的速率的条件下，激发状态种群渐近地接近非零值的时间依赖性。发现的效果是通过黑暗状态的出现来解释的，黑暗状态由于两极分化选择规则而没有折算。当远距离偶极双极相互作用起着重要作用时，在单原子的情况下，在单原子的情况下，在单原子横截面和双原子病例中揭示了这一点。
Spontaneous decay of an excited atom in a waveguide is essentially modified by the spatial structure of vacuum reservoir. This is particularly exciting in view of a range of applications for quantum information science. We found out that spontaneous decay can be incomplete, so the time dependence of the excited state population asymptotically approaches to a nonzero value, under the conditions when the atomic transition frequency is larger than the cutoff frequency of a waveguide and far from the vicinities of the cut-offs. Discovered effect is explained by the emergence of the dark state, which is non-decaying due to polarization selection rules. It was revealed for single-mode waveguide with rectangular cross section both in single-atom case and diatomic case when the long-range dipole-dipole interaction plays a significant role.
