论文标题
腔内的超冷原子的自组织的超速范阶段的尺寸跨界
Dimensional crossover in self-organised super-radiant phases of ultra cold atoms inside a cavity
论文作者
论文摘要
我们考虑通过两泵构型照明的线性光腔中的超冷骨气原子的冷凝物，每个泵都与腔轴的方向不同角度。我们表明，这种配置允许从一维量子光学晶格配置到由腔 - ATOM相互作用引起的二维量子光学晶格配置的平稳过渡。使用Holstein-Primakoff转换，我们在超呈射相中发现了这种自组织的基态在这种动态量子光学晶格中的角度方向的函数，并且还提供了对其在坐标和动量空间中的结构的分析。在本文的后面部分，我们展示了如何在这种量子光学晶格电位中通过扩展的玻色 - 哈伯德模型来定性地理解相应的结果。
We consider a condensate of ultra cold bosonic atoms in a linear optical cavity illuminated by a two-pump configuration where each pump is making different angles with the direction of the cavity axis. We show such configuration allows a smooth transition from a one-dimensional quantum optical lattice configuration to a two-dimensional quantum optical lattice configuration induced by the cavity-atom interaction. Using a Holstein-Primakoff transformation, we find out the atomic density profile of such self-organised ground state in the super-radiant phase as a function of the angular orientations of the pump in such dynamical quantum optical lattice, and, also provide an analysis of their structures in coordinate and momentum space. In the later part of the paper, we show how the corresponding results can also be qualitatively understood in terms of an Extended Bose-Hubbard model in such quantum optical lattice potential.
