| Autor: |
de la Cal, X. Gutiérrez, Alkhateeb, M., Pons, M., Matzkin, A., Sokolovski, D. |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Scientific Reports, 10:19225 (2020) Sci. Rep. (2020) 10:19225 |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1038/s41598-020-76065-7 |
| Popis: |
We analyse a little known aspect of the Klein paradox. A Klein-Gordon boson appears to be able to cross a supercritical rectangular barrier without being reflected, while spending there a negative amount of time. The transmission mechanism is demonstrably acausal, yet an attempt to construct the corresponding causal solution of the Klein-Gordon equation fails. We relate the causal solution to a divergent multiple-reflections series, and show that the problem is remedied for a smooth barrier, where pair production at the energy equal to a half of the barrier's height is enhanced yet remains finite. |
| Databáze: |
arXiv |
| Externí odkaz: |
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