New integrable coset sigma models
نویسندگان
چکیده
By using the general framework of affine Gaudin models, we construct a new class integrable sigma models. They are defined on coset direct product $N$ copies Lie group over some diagonal subgroup and they depend $3N-2$ free parameters. For $N=1$ corresponding model coincides with well-known symmetric space model. Starting from Hamiltonian formulation, derive Lagrangian for $N=2$ case show that it admits remarkably simple form in terms classical $\mathcal{R}$-matrix underlying integrability these We conjecture similar holds arbitrary $N$. Specifying our construction to $SU(2)$ $N=2$, eliminating one parameters, find three-parametric manifold $T^{1,1}$ as its target space. further comment connection results those existing literature.
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2021
ISSN: ['1127-2236', '1126-6708', '1029-8479']
DOI: https://doi.org/10.1007/jhep03(2021)062