D1/D5 systems in $\mathcal{N}=4$ string theories

E. Gava, A. B. Hammou, J. F. Morales +1

We propose CFT descriptions of the D1/D5 system in a class of freely acting Z_2 orbifolds/orientifolds of type IIB theory, with sixteen unbroken supercharges. The CFTs describing D…