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Comparison between the coherent-pair approximation and projection from a hedgehog Fock state in a chiral between soliton models

Authors: M. Harvey, K. Goeke and J. Urbano

Ref.: Physical Review D 36, 2149-2152 (1987)

Abstract: Comparisons are shown for approximations to the lowest-energy solution of a schematic Hamiltonian using either the coherent-pair approximation of Bolsterli of the hedgehog approximation with variation after projection as given by Fiolhais and Rosina.