标题： 石墨烯中的超辐射跃迁 显示英文标题

标题： Superradiance Transition in Graphene

摘要： 我们从理论上和数值上研究了石墨烯中出现受激辐射跃迁所需的条件。 石墨烯的电子性质在单个$p_z$轨道紧束缚近似中进行描述，在这种情况下，模型被简化为有效的两能级伪自旋$1/2$系统。 对于每个能级，我们引入电子逃逸到连续谱的转移速率。 我们证明，在某些条件下，受激辐射会经历最大量子相干逃逸到连续谱。 显示英文摘要

摘要： We study theoretically and numerically the conditions required for the appearance of a superradiance transition in graphene. The electron properties of graphene are described in the single $p_z$-orbital tight-binding approximation, in which the model is reduced to the effective two-level pseudo-spin $1/2$ system. For each level we introduce the electron transfer rate of escape into a continuum. We demonstrate that, under some conditions, the superradiance experiences the maximal quantum coherent escape to the continuum.