Branes and fundamental groups

Rajesh Gopakumar, Cumrun Vafa
1998 Advances in Theoretical and Mathematical Physics  
We consider bound states of D-branes wrapped around cycles with non-trivial fundamental groups of finite order. We find a new mechanism for binding D-branes by turning on flat discrete abelian and non-abelian gauge fields on their worldvolume. As a concrete application we study type IIB in the background where an S 3 /G shrinks, where G is a discrete subgroup of SU(2) acting freely on 5 3 .
doi:10.4310/atmp.1998.v2.n2.a7 fatcat:4ucogx7bevgspgt3wvnnp5jkzy