Analytical Calculation of the Fixed Length Lattice SU(2)-Higgs Model

Zheng Xite; Chen Hong; Lu Zao; He Yuan

Chinese Physics C> 1995, Vol. 19> Issue(2) : 137-142

Analytical Calculation of the Fixed Length Lattice SU(2)-Higgs Model

Department of Physics,Chengdu University of Science and Technology,Chengdu 610065

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Abstract：
The phase diagram of the lattice system of the SU(2) gauge field coupled with the fixed length Higgs field in the fundamental representation has been calculated analytically to the fourth order of the cumulant expansion.The variational parameters have been determined by the scanning method.The obtained phase diagram is in fine agreement with the Monte Carlo result.The calculation also has been made for the Polyakov lineof the SU(2)-Higgs and the pure SU(2) models at finite temperature(Nτ=1).The best up to now approximate analytical result β_c for the pure SU(2) model is obtained.

References

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Zheng Xite, Chen Hong, Lu Zao and He Yuan. Analytical Calculation of the Fixed Length Lattice SU(2)-Higgs Model[J]. Chinese Physics C, 1995, 19(2): 137-142.

Zheng Xite, Chen Hong, Lu Zao and He Yuan. Analytical Calculation of the Fixed Length Lattice SU(2)-Higgs Model[J]. Chinese Physics C, 1995, 19(2): 137-142. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Analytical Calculation of the Fixed Length Lattice SU(2)-Higgs Model

Corresponding author: Zheng Xite,

Department of Physics,Chengdu University of Science and Technology,Chengdu 610065

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1995-02-05

Abstract: The phase diagram of the lattice system of the SU(2) gauge field coupled with the fixed length Higgs field in the fundamental representation has been calculated analytically to the fourth order of the cumulant expansion.The variational parameters have been determined by the scanning method.The obtained phase diagram is in fine agreement with the Monte Carlo result.The calculation also has been made for the Polyakov lineof the SU(2)-Higgs and the pure SU(2) models at finite temperature(Nτ=1).The best up to now approximate analytical result β_c for the pure SU(2) model is obtained.