Strings Inside Walls in N=1 Super Yang-Mills

Understand

We conjecture the existence of strings bounded inside walls in SU$(n)$ $\N=1$ Super Yang-Mills theory.

• These strings carry $\Z_{[k,n]}$ quantum number, where $[k,n]$ is the greatest common divisor between $k$, the charge of the wall, and $n$.
• We provide field-theoretical arguments and string-theoretical evidences, both from MQCD and from gauge-gravity correspondence.
• We interpret this result from the point of view of the low-energy effective action living on the $k$-wall.