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arXiv · hep-th/9311008

Chiral bosons and improper constraints

F. P. Devecchi·H. O. Girotti
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Abstract

We argue that a consistent quantization of the Floreanini-Jackiw model, as a constrained system, should start by recognizing the improper nature of the constraints. Then each boundary conditon defines a problem which must be treated sparately. The model is settled on a compact domain which allows for a discrete formulation of the dynamics; thus, avoiding the mixing of local with collective coordinates. For periodic boundary conditions the model turns out to be a gauge theory whose gauge invariant sector contains only chiral excitations. For antiperiodoc boundary conditions, the mode is a second-class theory where the excitations are also chiral. In both cases, the equal-time algebra of the quantum energy-momentum densities is a Virasoro algebra. The Poincaré symmetry holds for the finite as well as for the infinite domain.

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F. P. Devecchi, H. O. Girotti. 1993-11-01. Chiral bosons and improper constraints. https://doi.org/10.1103/physrevd.49.4302

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