Entanglement in fermionic systems at a quantum phase transition

被引：7
|
作者：
Johannesson, H. [1 ]
Larsson, D.
机构：
[1] Gothenburg Univ, Dept Phys, SE-41296 Gothenburg, Sweden
[2] Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England
来源：
LOW TEMPERATURE PHYSICS | 2007年 / 33卷 / 11期
关键词：
D O I：
10.1063/1.2747069
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We consider recent results on the use of the single-site entanglement measure for identifying and characterizing a quantum phase transition in systems of interacting fermions. We discuss the extension of these results to fermionic models where the single-site entanglement may fail to signal a quantum phase transition, with particular attention given to the one-dimensional extended UV Hubbard model. (c) 200 American Institute of Physics.
引用
收藏
页码：935 / 943
页数：9
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