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Closed, analytic, boson realizations for Sp(4)

Journal Article · · J. Math. Phys. (N.Y.); (United States)
DOI:https://doi.org/10.1063/1.527016· OSTI ID:5368579
The problem of determing a boson realization for an arbitrary irrep of the unitary simplectic algebra Sp(2d-italic) (or of the corresponding discrete unitary irreps of the unbounded algebra Sp(2d-italic,R-italic)) has been solved completely in recent papers. This solution is not known in closed analytic form except for d-italic = 1 and for special classes of irreps for d-italic>1. A different method of obtaining a boson realization that solves the full problem for Sp(4) is described. The method utilizes the chain Sp(2d-italic)containsSU(2) x SU(2) x xxx x SU(2) (d-italic times), which, for d-italic> or =4, does not provide a complete set of quantum numbers. Though a simple solution of the missing label problem can be given, this solution does not help in the construction of a mapping algorithm for general d-italic.
Research Organization:
Department of Physics, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6396
OSTI ID:
5368579
Journal Information:
J. Math. Phys. (N.Y.); (United States), Journal Name: J. Math. Phys. (N.Y.); (United States) Vol. 27:8; ISSN JMAPA
Country of Publication:
United States
Language:
English