Yangian Symmetry in Integrable Quantum Gravity

Details Yangian Symmetry in Integrable Quantum Gravity Yangian Symmetry in Integrable Quantum Gravity

1997-10-28

arxiv.org/abs/hep-th/9710210v1

Nucl.Phys. B527 (1998) 657-689

Physics

High Energy Physics

High Energy Physics - Theory

23 pages, 1 figure, LaTeX2e

Scientific paper

10.1016/S0550-3213(98)00358-7

Dimensional reduction of various gravity and supergravity models leads to effectively two-dimensional field theories described by gravity coupled G/H coset space sigma-models. The transition matrices of the associated linear system provide a complete set of conserved charges. Their Poisson algebra is a semi-classical Yangian double modified by a twist which is a remnant of the underlying coset structure. The classical Geroch group is generated by the Lie-Poisson action of these charges. Canonical quantization of the structure leads to a twisted Yangian double with fixed central extension at a critical level.

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