1997/06/03 by Martin Rivas · 1 citation
Physics and Astronomy · #hep-th
paper · pdf · doi:10.1016/s0375-9601(98)00703-8
25 pages, 6 Figures, RevTeX
arxiv created 1997/06/03 · arxiv updated 2009/11/30
Since the spin of real particles is of order of ℏ, it is difficult to distinguish in a quantum mechanical experiment involving spinning particles what part of the outcome is related to the spin contribution and what part is a pure quantum mechanical effect. We analyze in detail a classical model of a nonrelativistic spinning particle under the action of a potential barrier and compute numerically the crossing for different potentials. In this way it is shown that because of the spin structure there is a nonvanishing contribution to crossing for energies above a certain minimum value, even below the top of the potential barrier. Results are compared with the quantum tunnel effect.