Darboux Transformations of Bispectral Quantum Integrable Systems

Details Darboux Transformations of Bispectral Quantum Integrable Systems Darboux Transformations of Bispectral Quantum Integrable Systems

1998-06-05

arxiv.org/abs/math-ph/9806002v1

Physics

Mathematical Physics

10 pages, no figures

Scientific paper

We present an approach to higher dimensional Darboux transformations suitable for application to quantum integrable systems and based on the bispectral property of partial differential operators. Specifically, working with the algebro-geometric definition of quantum integrability, we utilize the bispectral duality of quantum Hamiltonian systems to construct non-trivial Darboux transformations between completely integrable quantum systems. As an application, we are able to construct new quantum integrable systems as the Darboux transforms of trivial examples (such as symmetric products of one dimensional systems) or by Darboux transformation of well-known bispectral systems such as quantum Calogero-Moser.

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