p-adic Inflation

  title={p-adic Inflation},
  author={Neil Barnaby and Tirthabir Biswas and James M Cline}
We construct approximate inflationary solutions rolling away from the unstable maximum of p-adic string theory, a nonlocal theory with derivatives of all orders. Novel features include the existence of slow-roll solutions even when the slow-roll parameters, as usually defined, are much greater than unity, as well as the need for the Hubble parameter to exceed the string mass scale m s. We show that the theory can be compatible with CMB observations if g 2 s /(ln p) ∼ 10 −15 , where g s is the… CONTINUE READING