Dynamical Dimension Change In Supercritical String Theory

  title={Dynamical Dimension Change In Supercritical String Theory},
  author={Simeon Hellerman and Xiao Liu},
We study tree-level solutions to heterotic string theory in which the number of spacetime dimensions 10+n changes dynamically due to closed string tachyon condensation. Taking the large-n limit, we compute the amount by which the dilaton gradient Φ,X0 changes during the condensation process. At leading order in n we find that the change in the invariant magnitude of Φ,X0 compensates the change in spacelike central charge on the worldsheet, so that the total worldsheet central charges are equal… CONTINUE READING