Further Study on SU(2)×SU(2) Lattice Chiral Model

Huang Liangxin; Li Hong; Chen Tianlun

Chinese Physics C> 1995, Vol. 19> Issue(3) : 245-250

Further Study on SU(2)×SU(2) Lattice Chiral Model

Department of Physics, Nankai University, Tianjin 300071

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Abstract：
With the Variational-Cumulant Expansion method, the free energy of SU(2)×SU(2) lattice chiral model is calculated to the 5th order correction. The variational parameter is determined by main variational method and accumulation point method, respectively. It is showed that more correspondent internal energy curves and specific heat curves with the MC results can be obtained by the latter one.

References

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A.Migdal,ZhETF（USSR）69（1975）810.[2]A.Polyakov,Phys.Lett.,B59（1975）79.F.GreenandS.Samuel,Nucl.Phys,B190[FS3]（1981）113.[3]L.X.HuangT.L.Chen,Commun.Theor.Phys.,21（1994）341.[4]X.T.Zheng,Z.G.TanJ.Wang,Nucl.Phys.,B287（1987）171.[5]C.Hao,H.M.WangY.X.Song,Commun.Theor.Phys.,12（1989）273.[6]W.Kerler,Phys.Rev.Lett.,19（1988）1906.W.Kerler,Phys.Rev.,D40（1989）2085.[7]M.Caselle,Z.Phys.,C28（1985）233.

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Huang Liangxin, Li Hong and Chen Tianlun. Further Study on SU(2)×SU(2) Lattice Chiral Model[J]. Chinese Physics C, 1995, 19(3): 245-250.

Huang Liangxin, Li Hong and Chen Tianlun. Further Study on SU(2)×SU(2) Lattice Chiral Model[J]. Chinese Physics C, 1995, 19(3): 245-250. 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

Further Study on SU(2)×SU(2) Lattice Chiral Model

Corresponding author: Huang Liangxin,

Department of Physics, Nankai University, Tianjin 300071

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1995-03-05

Abstract: With the Variational-Cumulant Expansion method, the free energy of SU(2)×SU(2) lattice chiral model is calculated to the 5th order correction. The variational parameter is determined by main variational method and accumulation point method, respectively. It is showed that more correspondent internal energy curves and specific heat curves with the MC results can be obtained by the latter one.