THE VARIATIONAL CALCULATION OF MASS GAP IN 2+1 DIMENSIONAL SU(2) LGT |
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Authors: | ZHENG Wei-Hong GUO Shuo-Hong |
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Institution: | Zhongshan University,Guangzhou |
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Abstract: | A variational calculation of the mass gap in 2+1 dimensional SU(2) lattice gauge theory by using a Hamiltonian which possesses exact ground state and correct continuum limit is made.In the range 1.3≤1/g2≤7,a good scaling behaviour am=2.28g2 is obtained,which is in agreement with weak-coupling perturbation theory and the results obtained by another Hamiltonian which does not possess correct continuum limit. |
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