Intersecting Flavor Branes

Understand

We consider an instance of the AdS/CFT duality where the bulk theory contains an open string tachyon, and study the instability from the viewpoint of the boundary field theory.

• We focus on the specific example of the AdS_5 X S^5 background with two probe D7 branes intersecting at general angles.
• For generic angles supersymmetry is completely broken and there is an open string tachyon between the branes.
• The field theory action for this system is obtained by coupling to N =4 super Yang-Mills two N =2 hyper multiplets in the fundamental representation of the SU(N) gauge group, but with different choices of embedding of the two N=2 subalgebras into N=4.