TRANSMISSION, REFLECTION, AND INTERFERENCE CONTRIBUTIONS TO THE TUNNELING DWELL TIME

Expressions for the transmission, reflection, and interference contrib utions to the dwell time for wave packet scattering are obtained by me ans of scattering theory projector operators that provide a unifying f ramework for various dwell time decompositions. These different dwell time resolutions are illustrated with the aid of a formal analogy betw een the two-level system and one-dimensional scattering. The complex < <times>> and Larmor times proposed by other authors are found as parti cular cases of the theory. Numerical calculations for a rectangular ba rrier are provided.