The excitation spectrum of rotating strings with masses at the ends
arXiv:1310.0253 · doi:10.1007/JHEP12(2013)047
Abstract
We compute the spectrum of excitations of the rotating Nambu-Goto string with masses at the ends. We find interesting quasi-massless modes in the limit of slow rotation and comment on the nontrivial relation between world-sheet and target space energy.
13 pages, 1 figure, v2: Typos corrected, v3: final