标题： 双纠缠原子辐射过程中的边界效应 显示英文标题

标题： Boundary effects on radiative processes of two entangled atoms

摘要： 我们分析由两个相同的双能级原子组成的量子系统与处于真空态的质量零标量场在存在完美反射平面边界的情况下的辐射过程。 我们考虑原子被制备在一个稳态最大纠缠态中。 我们研究由真空涨落引起的纠缠态到其集体基态的自发跃迁率。 在空空间情况下，自发衰减率可以根据特定的纠缠态而增强或抑制，并随着原子之间的距离变化而变化。 接下来，我们考虑完美镜面的存在，并在这些表面上施加狄利克雷边界条件。 在存在单个边界的情况下，对称态的跃迁率会显著减少，而对于反对称态，我们的结果表明有轻微的增强。 为了全面起见，我们也研究了两个完美镜面的情况。 显示英文摘要

摘要： We analyze radiative processes of a quantum system composed by two identical two-level atoms interacting with a massless scalar field prepared in the vacuum state in the presence of perfect reflecting flat boundaries. We consider that the atoms are prepared in a stationary maximally entangled state. We investigate the spontaneous transition rates from the entangled states to its collective ground state induced by vacuum fluctuations. In the empty-space case, the spontaneous decay rates can be enhanced or inhibited depending on the specific entangled state and changes with the distance between the atoms. Next, we consider the presence of perfect mirrors and impose Dirichlet boundary conditions on such surfaces. In the presence of a single boundary the transition rate for the symmetric state undergoes a strong reduction, whereas for the antisymmetric state our results indicate a slightly enhancement. For completeness we also investigate the case of two perfect mirrors.