Exponentially Accurate Semiclassical Tunneling Wave Functions in One Dimension
arXiv:1003.3280 · doi:10.1088/1751-8113/43/47/474026
Abstract
We study the time behavior of wave functions involved in tunneling through a smooth potential barrier in one dimension in the semiclassical limit. We determine the leading order component of the wave function that tunnels. It is exponentially small in . For a wide variety of incoming wave packets, the leading order tunneling component is Gaussian for sufficiently small . We prove this for both the large time asymptotics and for moderately large values of the time variable.