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Paper IPM / P / 7174  


Abstract:  
In present work we combine the Lanczos algorithm and the lowest order constrained variational method (LOCV) to obtain a simple version of the Lanczos algorithm. In order to test the method the ground state energy and the anti symmetric mass gap of U(1) lattice guage model are calculated and the results are compared with those which are computed by other many body methods.
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