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arXiv 1002.4894cond-mat.str-el
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kagome格点上的强关联费米子

Strongly correlated fermions on a kagome lattice

Aroon O'Brien, Frank Pollmann, Peter Fulde

摘要:

我们研究了一个模型的强关联无自旋费米子的kagome晶格在1/3填充,与扩展的哈伯德哈密顿描述的相互作用。在所需的强关联制度的有效哈密顿量推导出,从它的谱函数计算通过精确对角化技术。我们提出了我们的数值结果,以期讨论可能的签名的分数电荷的限制/解除限制。

英文摘要:

We study a model of strongly correlated spinless fermions on a kagome lattice at 1/3 filling, with interactions described by an extended Hubbard Hamiltonian. An effective Hamiltonian in the desired strong correlation regime is derived, from which the spectral functions are calculated by means of exact diagonalization techniques. We present our numerical results with a view to discussion of possible signatures of confinement/deconfinement of fractional charges.

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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