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New nonultralocal quantum integrable models through gauge transformation

Anjan Kundu
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Abstract

One of the few schemes for obtaining an integrable nonultralocal quantum model is its possible generation from an ultralocal model by a suitable gauge transformation. Applying this scheme we discover two new nonultralocal models, which fit well into the braided Yang-Baxter relations ensuring their quantum integrability. Our first model is generated from a lattice Liouville-like system, while the second one which is an exact lattice version of the light-cone sine-Gordon is gauge transformed from a model, which gives also the quantum mKdV for a different gauge choice.

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Anjan Kundu. 2002-07-04. New nonultralocal quantum integrable models through gauge transformation. https://arxiv.org/abs/hep-th/0207036

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