Dirac lattice

被引:2
|
作者
Sochichiu, Corneliu [1 ,2 ]
机构
[1] Sungkyunkwan Univ, Univ Coll, Suwon 440746, South Korea
[2] Sungkyunkwan Univ, Dept Phys, Suwon 440746, South Korea
关键词
D O I
10.1088/1751-8113/46/1/015002
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We study the emergence of a Dirac fermionic field in the low energy description of non-relativistic dynamical models on graphs admitting a continuum limit. The Dirac fermionic field appears as the effective field describing the excitations above a point-like Fermi surface. Together with the Dirac fermionic field an effective space-time metric also emerges. We analyze the conditions for such Fermi points to appear in general, paying special attention to the cases of two and three spatial dimensions.
引用
收藏
页数:18
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