Excited States of Open Strings From $\mathcal{N}=4$ SYM

Understand

We continue the analysis of building open strings stretched between giant gravitons from $\mathcal{N}=4$ SYM by going to second order in perturbation theory using the three-loop dilatation generator from the field theory.

• In the process we build a Fock-like space of states using Cuntz oscillators which can be used to access the excited open string states.
• We find a remarkable cancellation among the excited states that shows the ground state energy is consistent with a fully relativistic dispersion relation.