On the geometry of classically integrable two-dimensional non-linear sigma models

Details On the geometry of classically integrable two-dimensional non-linear sigma models On the geometry of classically integrable two-dimensional non-linear sigma models

2008-06-03

arxiv.org/abs/0806.0550v2

Physics

High Energy Physics

High Energy Physics - Theory

16 pages. Major changes (almost a new paper). To be published in Nuclear Physics B (2010)

Scientific paper

10.1016/j.nuclphysb.2010.06.005

A master equation expressing the classical integrability of two-dimensional non-linear sigma models is found. The geometrical properties of this equation are outlined. In particular, a closer connection between integrability and T-duality transformations is emphasised. Finally, a whole new class of integrable non-linear sigma models is found and all their corresponding Lax pairs depend on a spectral parameter.

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