An Exact Tunneling Solution in a Simple Realistic Landscape
  We present an analytical solution for the tunneling process in a piecewise
linear and quadratic potential which does not make use of the thin-wall
approximation. A quadratic potential allows for smooth attachment of various
slopes exiting into the final minimum of a realistic potential. Our tunneling
solution thus serves as a realistic approximation to situations such as
populating a landscape of slow-roll inflationary regions by tunneling, and it
is valid for all regimes of the barrier parameters. We shortly comment on the
inclusion of gravity.
