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The q-boson operator algebra and q-Hermite polynomials

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Abstract

The q-boson algebra is defined as an associative algebra with generators and relations. Some examples are given, and then the q-boson algebra is extended such that the roots of the ‘diagonal generators’ are also defined. It is shown that a family of transformations exist mapping one set of standard generators of the q-boson algebra to another set of standard generators. Using such a transformation, one obtains expressions for q-bosons for which the kth q-boson state is expressed in terms of a q-Hermite polynomial p k (x; q) which reduces to the ordinary Hermite polynomial of degree k when q=1.

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Van Der Jeugt, J. The q-boson operator algebra and q-Hermite polynomials. Lett Math Phys 24, 267–274 (1992). https://doi.org/10.1007/BF00420486

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  • DOI: https://doi.org/10.1007/BF00420486

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