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arXiv 0906.0955cond-mat.quant-gas
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一维双组分玻色气体的极化抑制和非单调局域两体关联

Polarization Suppression and Nonmonotonic Local Two-Body Correlations in the Two-Component Bose Gas in One Dimension

J. -S. Caux, A. Klauser, J. van den Brink

摘要:

本文研究了一维双组分玻色气体中的量子统计、强相互作用和有限温度之间的相互作用。使用热力学Bethe Answer,我们得到的状态方程,人口密度和局部密度相关数值作为所有物理参数(相互作用,温度和化学势)的函数,量化低温铁磁和高温非极化制度之间的全面交叉。在对比的单组分,Lieb-Liniger气体,局部密度相关作为温度的函数的非单调行为进行观察。

英文摘要:

We study the interplay of quantum statistics, strong interactions and finite temperatures in the two-component (spinor) Bose gas with repulsive delta-function interactions in one dimension. Using the Thermodynamic Bethe Ansatz, we obtain the equation of state, population densities and local density correlation numerically as a function of all physical parameters (interaction, temperature and chemical potentials), quantifying the full crossover between low-temperature ferromagnetic and high-temperature unpolarized regimes. In contrast to the single-component, Lieb-Liniger gas, nonmonotonic behaviour of the local density correlation as a function of temperature is observed.

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。

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