Generalized instantons in N = 4 super Yang-Mills theory and spinorial geometry

Details Generalized instantons in N = 4 super Yang-Mills theory and spinorial geometry Generalized instantons in N = 4 super Yang-Mills theory and spinorial geometry

2009-07-23

arxiv.org/abs/0907.4174v3

JHEP 0910:030,2009

Physics

High Energy Physics

High Energy Physics - Theory

29 pages, 3 tables. v2: references added. v3: conclusion extended, version published in JHEP

Scientific paper

10.1088/1126-6708/2009/10/030

Using spinorial geometry techniques, we classify the supersymmetric solutions of euclidean ${\cal N}=4$ super Yang-Mills theory. These backgrounds represent generalizations of instantons with nontrivial scalar fields turned on, and satisfy some constraints that bear a similarity with the Hitchin equations, and contain the Donaldson equations as a special subcase. It turns out that these constraints can be obtained by dimensional reduction of the octonionic instanton equations, and may be rephrased in terms of a selfduality-like condition for a complex connection. We also show that the supersymmetry conditions imply the equations of motion only partially.

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