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所属单位：数理学院

教研室：0206

发表刊物：chinese physics letters

项目来源：国家自然科学基金项目

关键字：Bose-Fermi mixuture,phase separation,Bethe ansatz

摘要：By the density-functional calculation we investigate the ground-state properties of Bose-Fermi mixture confined in one-dimensional harmonic traps. The homogeneous mixture of bosons and polarized fermions with contact interaction can be exactly solved by the Bethe-ansatz method. After giving the exact formula of ground state energy density, we employ the local-density approximation to determine the density distribution of each component. It is shown that with the increase in interaction, the total density distribution evolves to Fermi-like distribution and the system exhibits phase separation between two components when the interaction is strong enough but finite. While in the infinite interaction limit both bosons and fermions display the completely same Fermi-like distributions and phase separation disappears.

第一作者：郝亚江

卷号：28

页面范围：1

字数：1

是否译文：否