| Issue |
EPL
Volume 81, Number 5, March 2008
|
|
|---|---|---|
| Article Number | 50001 | |
| Number of page(s) | 5 | |
| Section | General | |
| DOI | https://doi.org/10.1209/0295-5075/81/50001 | |
| Published online | 04 February 2008 | |
Anomalous relativistic tunneling and exotic point interactions
Laboratory of Physics, Kochi University of Technology - Tosa Yamada, Kochi 782-8502, Japan
Received:
23
September
2007
Accepted:
7
January
2008
We examine the one-dimensional quantum scattering of a Dirac particle off relativistic potential barriers. With proper considerations of the Dirac sea, the existence of anomalous tunneling at zero incident energy is revealed for a particular type of relativistic potential having the 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.
PACS: 03.65.Nk – Quantum mechanics: Scattering theory / 03.65.Pm – Relativistic wave equations / 24.10.Jv – Relativistic models
© EPLA, 2008
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