Little strings on D n orbifolds

Abstract

Abstract We explore two classes of 6d N = 1 0 $$ \mathcal{N}=\left(1,0\right) $$ little string theories obtained from type IIA/IIB NS5-branes probing D n singularities. Their tensor branches are described by effective gauge theories whose instanton solitons are macroscopic little strings. We specifically study two families of 2d N = 0 4 $$ \mathcal{N}=\left(0,4\right) $$ gauge theories which describe at low energy the worldsheet dynamics of the type IIA/IIB little strings. These gauge theories are useful to calculate the supersymmetric partition functions of the little string theories on R 4 × T 2. We establish the T-duality of the little string theories by utilizing their BPS spectra as a probe.

Keywords

• Brane Dynamics in Gauge Theories
• String Duality
• Supersymmetric Gauge Theory
• Solitons Monopoles and Instantons