On 1/4 BPS ((F, D1), (NS5, D5)) bound states of type IIB string theory

Qiang Jia, J. X. Lu, Shibaji Roy

We construct two new SL(2,Z) invariant vacua of type IIB string theory which are bound states of $(p,q)$ strings with $(m,n)$ 5-branes, written as ((F, D1), (NS5, D5)) and preserve…