dc.contributor.author | Gutiérrez de la Cal, Xabier | |
dc.contributor.author | Alkhateeb, M. | |
dc.contributor.author | Pons Barba, María Luisa | |
dc.contributor.author | Matzkin, A. | |
dc.contributor.author | Sokolovski, Dmitri | |
dc.date.accessioned | 2021-02-03T09:45:16Z | |
dc.date.available | 2021-02-03T09:45:16Z | |
dc.date.issued | 2020-11-05 | |
dc.identifier.citation | Scientific Reports 10(1) : (2020) // Article ID 19225 | es_ES |
dc.identifier.issn | 2045-2322 | |
dc.identifier.uri | http://hdl.handle.net/10810/50008 | |
dc.description.abstract | 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. | es_ES |
dc.description.sponsorship | Financial support of MCIU, through the Grant PGC2018-101355-B-100(MCIU/AEI/FEDER,UE) (XGdC, MP, DS), of Spanish MINECO, project FIS2016-80681-P (MP), and of the Basque Government Grant no. IT986-16 (MP, DS) is gratefully acknowledged. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Nature | es_ES |
dc.relation | info:eu-repo/grantAgreement/MCIU/PGC2018-101355-B-100 | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/FIS2016-80681-P | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | * |
dc.subject | reflection | es_ES |
dc.title | Klein paradox for bosons, wave packets and negative tunnelling times | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | This article is licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0) | es_ES |
dc.rights.holder | Atribución 3.0 España | * |
dc.relation.publisherversion | https://www.nature.com/articles/s41598-020-76065-7#auth-M_-Pons | es_ES |
dc.identifier.doi | 10.1038/s41598-020-76065-7 | |
dc.departamentoes | Física aplicada I | es_ES |
dc.departamentoes | Química física | es_ES |
dc.departamentoeu | Fisika aplikatua I | es_ES |
dc.departamentoeu | Kimika fisikoa | es_ES |