Boundary terms in Nambu-Goto string action

Abstract

We investigate classical strings defined by the Nambu-Goto action with the boundary term added. We demonstrate that the latter term has a significant bearing on the string dynamics. It is confirmed that new action terms that depend on higher order derivatives of string coordinates cannot be considered as continuous perturbations from the starting string functional. In the case the boundary term reduces to the Gauss-Bonnet term, a stability analysis is performed on the rotating rigid string solution. We determined the most generic solution that the fluctuations grow to. Longitudinal string excitations are found. The Regge trajectories are nonlinear.

9 LaTeX pages and 3 PostScript figures (uuencoded), preprint TPJU-15/94

References in corpus (1)

• Classical Open String Models in 4-Dim Minkowski Spacetime

Cited by in corpus (4)

• Planetoid strings : solutions and perturbations
• Nambu-Goto string with the Gauss-Bonnet term and point-like masses at the ends
• Ground state energy of the modified Nambu-Goto string
• Open strings with topologically inspired boundary conditions