Stringy spacetime uncertainty principle and a modified trans-Planckian censorship criterion
Stringy spacetime uncertainty principle and a modified trans-Planckian censorship criterion
We study the implications of the stringy spacetime uncertainty relation (STUR) for inflationary cosmology. By demanding that no fluctuation modes that exit the Hubble radius are affected by the nonlocality resulting from the STUR, we find an upper bound on the number of e-foldings of inflation. The bound is a …