The Analytical Approach for the Two-dimensional O(3) Non-linear σ Model

Zhao Peiying

Chinese Physics C> 1995, Vol. 19> Issue(2) : 143-147

The Analytical Approach for the Two-dimensional O(3) Non-linear σ Model

Zhao Peiying ^,

Institute of High Energy Physics,The Chinese Academy of Sciences,Beijing 100039

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Abstract：
In the lattice gauge theory,by using the variational cumulant expansion,we calculate the internal energy and specific heat for the two-dimensional O(3) non-linear σ model.A comparison with Monte Carlo data is also presented.

References

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F.Wegner.J.Math.Phys.,12（1971）2259;A.A.Migdal,Φ69（1975）810;JETP42（1975）413;Φ69（1975）1457;JETP42（1975）743.[2]L.P.Kadan off,Ann.Phys.,100（1976）359;Rev.Mod.Phys,49（1977）267.[3]E.Brezin.J.Zinn-Justin,Phys.Rev.,B14（1976）3110.[4]G.Martinelli,G.Parisi,R.Petronzio,Phys.Lett.,100B（1981）485;M.Namiki,I.Ohba,K.Okanoetal.,Prog.Theor.Phys.,73（1985）186;U.Wolff,Nucl.Phys.,B334（1990）581;J.Apostolakis,C.F.Baillie,G.C.Fox,Phys.Rev.,D43（1991）2687.[5]C.M.Wu,Z.K.Zhu,P.Y.Zhaoetal.,Phys.Lett,216B（1989）381.

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Zhao Peiying. The Analytical Approach for the Two-dimensional O(3) Non-linear σ Model[J]. Chinese Physics C, 1995, 19(2): 143-147.

Zhao Peiying. The Analytical Approach for the Two-dimensional O(3) Non-linear σ Model[J]. Chinese Physics C, 1995, 19(2): 143-147. 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

The Analytical Approach for the Two-dimensional O(3) Non-linear σ Model

Zhao Peiying ^,

Corresponding author: Zhao Peiying,

Institute of High Energy Physics,The Chinese Academy of Sciences,Beijing 100039

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

Abstract: In the lattice gauge theory,by using the variational cumulant expansion,we calculate the internal energy and specific heat for the two-dimensional O(3) non-linear σ model.A comparison with Monte Carlo data is also presented.