Fermion Condensates in Lower Dimensional Gauge Theories |
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Authors: | LUO Xiang-Qian CHEN Qi-Zhou |
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Institution: | Department of Physics,Zhongshan University,Guangzhou 510275 |
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Abstract: | Combining a unitary transformation,the variational method and the exact ground state of pure gauge Hamiltonian.we investigate syst matically the vacumm structure and spintaneous chiral-symmetry breaking in (1+1) and (2+1) dimensional Hamiltonian lattice gauge theories with fermions,and obtain nice scaling behaviors for 〈ψψ〉 extending to the weak coupling regime.This paper not only reproduces well the exact value in the continuum Schwinger model,but also predicts the values for the fermion condensates in QCD2,QED3 and QCD3. |
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