Spectrum of a Supersymmetric Color Superconductor

Understand

We have recently shown that the ground state of ${\cal N} = 4$, SU($N_{\rm{\tiny c}}$) super Yang--Mills coupled to $N_{\rm{\tiny f}} \ll N_{\rm{\tiny c}}$ flavors, in the presence of non-zero isospin and R-symmetry charges, is a supersymmetric, superfluid, color superconductor.

• The holographic description consists of $N_{\rm{\tiny f}}$ D7-brane probes in AdS$_5\times$S$^5$ with electric and instantonic fields on their worldvolume.
• These correspond to fundamental strings and D3-branes dissolved on the D7-branes, respectively.
• Here we use this description to determine the spectrum of mesonic excitations.