| Revista: | Revista mexicana de física |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000426487 |
| ISSN: | 0035-001X |
| Autors: | Aquino, N1 Rojas, R.A1 Montgomery, H.E2 |
| Institucions: | 1Universidad Autónoma Metropolitana, Departamento de Física, Ciudad de México. México 2Centre College, Louisville, Kentucky. Estados Unidos de América |
| Any: | 2018 |
| Període: | Jul-Ago |
| Volum: | 64 |
| Número: | 4 |
| País: | México |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Analítico, teórico |
| Resumen en inglés | We have computed accurate values for the ground state energy of a hydrogen atom confined by a finite spherical barrier of height V 0 as a function of the confinement radius R c . We consider the nucleus as a sphere with a uniform charge distribution instead of as a point particle. The contribution to the ground state energy due to the finite nuclear size is computed as a function of the confinement radius, R c , and the height of the barrier, V 0 , using time-independent perturbation theory. For an impenetrable cavity with R c = 0.5 au, we found that this energy correction is fifty times higher than the corresponding value for the free hydrogen atom. For a finite value of V 0 , we found that the maximum of the energy correction is reached at a value R CMAX , which is very close to the position at which the electron density is most compact around the nucleus. This is confirmed though evaluation of the Shannon entropy in configuration space |
| Disciplines | Física y astronomía |
| Paraules clau: | Física, Atomo de hidrógeno confinado, Corrección de núcleo finito, Entropía de Shannon |
| Keyword: | Confined hydrogen atom, Finite nucleus correction, Shannon entropy |
| Text complet: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
