| n+1维双sine-Gordon模型的Coleman相变 |
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| 引用本文： | 王振里,楼森岳.n+1维双sine-Gordon模型的Coleman相变[J].物理学报,1990,39(7):8-14. |
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| 作者姓名： | 王振里 楼森岳 |
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| 作者单位： | 宁波师范学院物理系,宁波,315211 |
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| 摘 要： | 本文计算了n+1维双sinc-Gordon模型的高斯有效势,在高斯有效势近似下,证明:n≥3的模型是平凡的,n<3的模型存在一个Coleman相交点,临界耦合参数为βcr=(2n+2π(n+1)/2(α1R+α2R/4)(3-n)/2)/(Γ(1/2(3-n))(α1R+α2R/16)).
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| 收稿时间： | 1989-08-30 |
THE COLEMAN PHASE TRANSITION FOR THE DOUBLE sine-GORDON MODEL IN n+1 DIMENSIONS |
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| WANG ZHEN-LI and LOU SEN-YUE.THE COLEMAN PHASE TRANSITION FOR THE DOUBLE sine-GORDON MODEL IN n+1 DIMENSIONS[J].Acta Physica Sinica,1990,39(7):8-14. |
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| Authors: | WANG ZHEN-LI and LOU SEN-YUE |
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| Abstract: | The Gaussian effective potential of the double sine-Gordon model in n + 1 dim ensions is computed. Within the Gaussian approximation, we prove that the model is trivial for n ≥ 3 and there exists a Coleman phase transition point for n < 3, the critical coupling parameter reads: Acr=(n+2π(n+1)/2(α1R+α2R/4)(3-n)/2)/(Γ(1/2(3-n))(α1R+α2R/16)). |
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