Dualities of corner configurations and supersymmetric indices

Abstract

Abstract We compute supersymmetric indices which count local operators at certain half-BPS interfaces and quarter-BPS junctions of interfaces in four-dimensional N $$ \mathcal{N} $$ = 4 Super Yang-Mills theory. We use the indices as very stringent tests of a variety of string theory-inspired conjectures about the action of S-duality on such defects.

Keywords

• Brane Dynamics in Gauge Theories
• Duality in Gauge Field Theories
• String Duality
• Supersymmetric Gauge Theory