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Campoamor Stursberg, Otto Ruttwig (2007) The Wigner supermultiplet model revisited. Analytical determination of internal labelling operators by means of contracted Casimir operators. Advanced Studies in Theoretical Physics, 1 (9-12). pp. 505-514. ISSN 1313-1311
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Official URL: http://www.m-hikari.com/astp/astp2007/astp9-12-2007/campoamorASTP9-12-2007
Abstract
We prove that the missing label operators for the state labelling problem in the Wigner supermultiplet model su(2)×su(2) � su(4) can be solved naturally without explicitly using enveloping algebras. Considering a contraction of Lie algebras naturally associated to the reduction chain su(2)×su(2) ,! su(4), we recover the Moshinsky-Nagel operators as functions of the Casimir operators of su(4), the spin-isospin subalgebra and the corresponding inhomogeneous contraction
Item Type: | Article |
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Uncontrolled Keywords: | Internal label, Casimir, contraction, supermultiplet |
Subjects: | Sciences > Physics > Quantum theory |
ID Code: | 21251 |
Deposited On: | 08 May 2013 13:30 |
Last Modified: | 12 Dec 2018 15:13 |
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