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Field-Theoretic Weyl Deformation Quantization of Enlarged Poisson Algebras

Mathematical Physics 2008-12-19 v1 High Energy Physics - Theory math.MP Quantum Algebra

Abstract

CC^*-algebraic Weyl quantization is extended by allowing also degenerate pre-symplectic forms for the Weyl relations with infinitely many degrees of freedom, and by starting out from enlarged classical Poisson algebras. A powerful tool is found in the construction of Poisson algebras and non-commutative twisted Banach-*-algebras on the stage of measures on the not locally compact test function space. Already within this frame strict deformation quantization is obtained, but in terms of Banach-*-algebras instead of CC^*-algebras. Fourier transformation and representation theory of the measure Banach-*-algebras are combined with the theory of continuous projective group representations to arrive at the genuine CC^*-algebraic strict deformation quantization in the sense of Rieffel and Landsman. Weyl quantization is recognized to depend in the first step functorially on the (in general) infinite dimensional, pre-symplectic test function space; but in the second step one has to select a family of representations, indexed by the deformation parameter \hbar. The latter ambiguity is in the present investigation connected with the choice of a folium of states, a structure, which does not necessarily require a Hilbert space representation.

Keywords

Cite

@article{arxiv.0805.4536,
  title  = {Field-Theoretic Weyl Deformation Quantization of Enlarged Poisson Algebras},
  author = {Reinhard Honegger and Alfred Rieckers and Lothar Schlafer},
  journal= {arXiv preprint arXiv:0805.4536},
  year   = {2008}
}

Comments

This is a contribution to the Special Issue on Deformation Quantization, published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/