Critical properties of the double-frequency sine-Gordon model with applications

Critical properties of the double-frequency sine-Gordon model with applications
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双频正弦戈登模型的关键特性及其应用

DOI:
10.1016/s0550-3213(00)00247-9
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发表时间:
2000
期刊:
Nuclear Physics
影响因子:
--
通讯作者:
A. Nersesyan
A. Nersesyan
中科院分区:
--
文献类型:
--
作者:
M. Fabrizio;A. O. Gogolin;A. Nersesyan

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我们研究了双频正弦戈登模型在该模型显示的伊辛量子相变附近的特性。通过映射到广义晶格量子 Ashkin-Teller 模型,我们获得了各种算子的临界和近非临界相关函数。我们讨论双正弦戈登模型在一维物理系统中的应用,例如交错外场中的自旋链和交错电势中的相互作用电子。
We study the properties of the double-frequency sine-Gordon model in the vicinity of the Ising quantum phase transition displayed by this model. Using a mapping onto a generalized lattice quantum Ashkin–Teller model, we obtain critical and nearly-off-critical correlation functions of various operators. We discuss applications of the double-sine-Gordon model to one-dimensional physical systems, like spin chains in a staggered external field and interacting electrons in a staggered potential.
DOI: 10.1103/physrevlett.79.1750
发表时间: 1997-09-01
影响因子: 8.6
作者:
Dender, DC;Hammar, PR;Aeppli, G
通讯作者: Aeppli, G