光晶格中漫游玻色原子与定域玻色原子的准平衡混合
Quasiequilibrium Mixture of Itinerant and Localized Bose Atoms in Optical Lattice
摘要：
研究了在零温度和整数填充因子下，当平衡晶格不可能共存时，在光晶格中存在巡游玻色子原子和定域玻色子原子的准平衡混合物的条件.的考虑是基于一个模型具有的结构的两个频带，或两个组件，玻色子哈伯德哈密尔顿。的最小值的比例现场排斥隧道参数，必要的发生这样的混合物，被发现。
英文摘要：
Conditions are studied under which there can exist a quasiequilibrium mixture of itinerant and localized bosonic atoms in an optical lattice, even at zero temperature and at integer filling factor, when such a coexistence is impossible for an equilibrium lattice. The consideration is based on a model having the structure of a two-band, or two-component, boson Hubbard Hamiltonian. The minimal value for the ratio of on-site repulsion to tunneling parameter, necessary for the occurrence of such a mixture, is found.
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