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An alternative dynamical description of Quantum Systems

  • Benno Fuchssteiner
Part of the Mathematical Physics Studies book series (MPST, volume 13)

Abstract

For the analysis of finite-dimensional classical completely integrable Hamiltonian systems the representation by action-angle-variables is an essential tool. This representation can be carried over to the infinite-dimensional situation by use of mastersymmetries, thus leading to a suitable Viasoro algebra in the vector fields. For the quantum case, however, such a structure cannot exist in the corresponding operator algebra, due to a classical theorem of Kaplansky, although the concept of mastersymmetries can be used to give a formal description of the infinitedimensional symmetry group of those “nonlinear” Quantum systems which are accessible by the Quantum Inverse Scattering Transform. In order to make that precise and to transfer classical notions and methods to the quantum case an alternative dynamical concept for quantum systems is proposed. We give two examples, in the discrete case we consider spin chains, like the Heisenberg anisotropic spin chain, and in the continuous case, where additional difficulties arise, we consider the quantization of the KdV.

Keywords

Quantum System Poisson Bracket Spin Chain Hamiltonian Structure Recursion Operator 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media Dordrecht 1992

Authors and Affiliations

  • Benno Fuchssteiner
    • 1
  1. 1.University of PaderbornPaderbornGermany

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