| Texto completo | |
| Autor(es): |
De Leo, Stefano
[1]
Número total de Autores: 1
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| Afiliação do(s) autor(es): | [1] Univ Estadual Campinas, Dept Appl Math, Sao Paulo - Brazil
Número total de Afiliações: 1
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| Tipo de documento: | Artigo Científico |
| Fonte: | Journal of Physics A-Mathematical and Theoretical; v. 46, n. 15 APR 19 2013. |
| Citações Web of Science: | 0 |
| Resumo | |
Based on the Dirac equation, the behavior of relativistic electrons which tunnel a potential barrier of height V-0 for incoming energies between V-0 and V-0 + m is studied by using the wave packet formalism. The choice of this incoming energy zone guarantees that only electrons participate in the tunneling process. In the opaque limit, as shown in a previous analysis, the transit velocity is proportional to the barrier width and for relativistic potential tends to a constant value greater than c. In this paper, a new numerical study shows a very surprising result: superluminal transmissions are also evident for thin barriers. (AU) | |
| Processo FAPESP: | 10/02213-3 - O formalismo de pacotes de ondas no estudo de equações diferenciais em mecânica quântica relativistica |
| Beneficiário: | Stefano de Leo |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |