Shape versus volume: making large flat extra dimensions invisible.

  title={Shape versus volume: making large flat extra dimensions invisible.},
  author={Keith R. Dienes},
  journal={Physical review letters},
  volume={88 1},
We show that the shape moduli associated with large extra dimensions can have a dramatic effect on the corresponding Kaluza-Klein spectra. Specifically, shape moduli can change the mass gap, induce level crossings, and even interpolate between theories with different numbers of compactified dimensions. We also show that in certain cases it is possible to maintain the ratio between the higher-dimensional and four-dimensional Planck scales while simultaneously increasing the Kaluza-Klein graviton… CONTINUE READING