Generalized deformed oscillator for vortices in superfluid films

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The algebra of observables of a system of two identical vortices in a superfluid thin film is described as a generalized deformed oscillator with a structure function containing a linear (harmonic oscillator) term and a quadratic term. In contrast to the deformed oscillators occuring in other physical systems (correlated fermion pairs in a single-$j$ nuclear shell, Morse oscillator), this oscillator is not amenable to perturbative treatment and cannot be approximated by quons. From the mathematical viewpoint, this oscillator provides a novel boson realization of the algebra su(1,1).
12 pages, LaTeX

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Condensed Matter

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http://salesiana.dossiersoluciones.com/handle/123456789/27712

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/9701143
 http://arxiv.org/abs/cond-mat/9701143

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arXiv