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arXiv 0712.2765cond-mat.str-elcond-mat.mes-hall
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二维库仑气体中的任意子关联

Anyon related correlations in two-dimensional Coulomb gases

B. Abdullaev, U. Rössler, C. -H. Park

摘要:

在我们最近的论文(Phys.Rev.B76,075403(2007))中,我们应用任意子的概念导出了一个适用于从玻色子极限到费米子极限的二维(2D)库仑系统的基态能量的近似解析公式。我们利用这些结果在这里提请注意两种特殊情况下的关联效应:自旋极化的2D费米子系统和带电的任意子系统接近玻色子极限。通过与量子Monte-Carlo数据(对于前者)和超网链和Bogolyubov近似(对于后者)中获得的精确结果进行比较,我们可以得出关联效应的结论,关联效应起源于玻色子系统,并通过使用任意子概念发挥作用。据我们所知,这些相关性尚未在文献中考虑。

英文摘要:

In our recent paper (Phys. Rev. B 76, 075403 (2007)), we have applied the anyon concept to derive an approximate analytic formula for the ground state energy, which applies to two-dimensional (2D) Coulomb systems from the bosonic to the fermionic limit. We make use of these results here to draw attention to correlation effects for two special cases: the spin-polarized 2D fermion system and the charged anyon system close to the bosonic limit. By comparison with quantum Monte-Carlo data (for the former) and exact results obtained in the hypernetted-chain and Bogolyubov approximations (for the latter) we can conclude on correlation effects, which have their origin in the bosonic systems and come into play by using the anyon concept. To our knowledge, these correlations are not yet considered in the literature.

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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