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Journal Article

Locally supersymmetric D = 3 non-linear sigma models


Nicolai,  Hermann
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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De Wit, B., Tollsten, A. K., & Nicolai, H. (1993). Locally supersymmetric D = 3 non-linear sigma models. Nuclear Physics B, 392(1), 3-38. doi:10.1016/0550-3213(93)90195-U.

Cite as: http://hdl.handle.net/11858/00-001M-0000-0013-5C48-A
We study non-linear sigma models with N local supersymmetries in three space-time dimensions. For N = 1 and 2 the target space of these models is riemannian or Kähler, respectively. All N > 2 theories are associated with Einstein spaces. For N = 3 the target space is quaternionic, while for N = 4 it generally decomposes into two separate quaternionic spaces, associated with inequivalent supermultiplets. For N = 5, 6, 8 there is a unique (symmetric) space for any given number of supermultiplets. Beyond that there are only theories based on a single supermultiplet for N = 9, 10, 12 and 16, associated with coset spaces with the exceptional isometry groups F4(−20), E6(−14), E7(−5) and E8(+8), respectively. For N = 3 and N greater-or-equal, slanted 5 the D = 2 theories obtained by dimensional reduction are two-loop finite.