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An Algebraic Approach to Solving Evolution Problems in Some Nonlinear Quantum Models

High Energy Physics - Theory 2009-10-28 v2

Abstract

A new general Lie-algebraic approach is proposed to solving evolution tasks in some nonlinear problems of quantum physics with polynomially deformed Lie algebras supd(2)su_{pd}(2) as their dynamic symmetry algebras. The method makes use of an expansion of the evolution operators by power series in the supd(2)su_{pd}(2) shift operators and a (recursive) reduction of finding coefficient functions to solving auxiliary exactly solvable su(2)su(2) problems with quadratic Hamiltonians. PACS numbers: 03.70; 02.20; 42.50

Keywords

Cite

@article{arxiv.hep-th/9404027,
  title  = {An Algebraic Approach to Solving Evolution Problems in Some Nonlinear Quantum Models},
  author = {Valery P. Karassiov and Andrei B. Klimov},
  journal= {arXiv preprint arXiv:hep-th/9404027},
  year   = {2009}
}

Comments

(11pages). LATEX