arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1801.08435cond-mat.quant-gas
收藏

二维简谐势阱中相互作用玻色子的费米性质

Fermionic properties of two interacting bosons in a two-dimensional harmonic trap

Pere Mujal, Artur Polls, Bruno Juliá-Díaz

摘要:

本文比较了两个相互作用玻色子在二维简谐势阱中的系统和两个相互作用费米子在同一势阱中的系统。特别地,我们讨论了系统的基态的性质,例如,对总能量的不同贡献随着我们改变原子-原子相互作用的强度和范围而改变。特别是,我们专注于短程和强相互作用的限制的两玻色子系统和非相互作用的两个费米子系统通过适当对称化相应的简并基态波函数。在该极限下,我们证明了两玻色子系统的密度分布具有与两个非相互作用费米子系统相似的趋势。类似地,当相互作用强度增加时引起的相关性导致两个系统的相似的成对关联函数。

英文摘要:

The system of two interacting bosons in a two-dimensional harmonic trap is compared with the system consisting of two noninteracting fermions in the same potential. In particular, we discuss how the properties of the ground state of the system, e.g., the different contributions to the total energy, change as we vary both the strength and range of the atom-atom interaction. In particular, we focus on the short-range and strong interacting limit of the two-boson system and compare it to the noninteracting two-fermion system by properly symmetrizing the corresponding degenerate ground state wave functions. In that limit, we show that the density profile of the two-boson system has a tendency similar to the system of two noninteracting fermions. Similarly, the correlations induced when the interaction strength is increased result in a similar pair correlation function for both systems.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑