Anomalous Relativistic Tunneling and Exotic Point Interactions

Details Anomalous Relativistic Tunneling and Exotic Point Interactions Anomalous Relativistic Tunneling and Exotic Point Interactions

2007-09-21

arxiv.org/abs/0709.3495v2

Europhys.Lett.81:50001,2008

Physics

Quantum Physics

5 pages TeX in EPL format, with 4 PDF figures. Revision with discussion on unitarity for all energies

Scientific paper

10.1209/0295-5075/81/50001

We examine one-dimensional quantum scattering of a Dirac particle off relativistic potential barriers. With proper considerations of Dirac sea, existence of anomalous tunneling at zero incident-energy is revealed for a particular type of relativistic potential having same magnitudes and opposite signs for scalar and vector components. It is also shown that this leads to an exotic short range limit of the potentials.

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