Abstract
The various relations between q-deformed oscillators algebras and the q-deformed su(2) algebras are discussed. In particular, we exhibit the similarity of the q-deformed su(2) algebra obtained from q- oscillators via Schwinger construction and those obtained from q-Holstein-Primakoff transformation and show how the relation between \(su_{\sqrt q } (2)\) and Hong Yan q-oscillator can be regarded as an special case of Inöuë- Wigner contraction. This latter observation and the imposition of positive norm requirement suggest that Hong Yan q-oscillator algebra is different from the usual \(su_{\sqrt q } (2)\) algebra, contrary to current belief in the literature.
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