q- Deformed Boson Expansions
S. S. Avancini, F. F. de Souza Cruz, J. R. Marinelli, D. P. Menezes, M. M. Watanabe de Moraes
Abstract
A deformed boson mapping of the Marumori type is derived for an underlying su(2) algebra. As an example, we bosonize a pairing hamiltonian in a two level space, for which an exact treatment is possible. Comparisons are then made between the exact result, our q- deformed boson expansion and the usual non - deformed expansion.
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