| Revista: | Brazilian journal of physics |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000328587 |
| ISSN: | 0103-9733 |
| Autores: | Thomaz, M.T1 Aguiar Pinto, A.C2 Moutinho, M2 |
| Instituciones: | 1Universidade Federal Fluminense, Instituto de Fisica, Niteroi, Rio de Janeiro. Brasil 2Universidade Estadual de Mato Grosso do Sul, Coordenadoria de Fisica, Dourados, Mato Grosso do Sul. Brasil |
| Año: | 2010 |
| Periodo: | Jun |
| Volumen: | 40 |
| Número: | 2 |
| Paginación: | 180-183 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental |
| Resumen en inglés | We show that the difference of adiabatic phases, that are basis-dependent, in noncyclic evolution of non-degenerate quantum systems have to be taken into account to give the correct interference result in the calculation of physical quantities in states that are a superposition of instantaneous eigenstates of energy. To verify the contribution of those adiabatic phases in the interference phenomena, we consider the spin-1/2 model coupled to a precessing external magnetic field. In the model, the adiabatic phase increases in time up to reach the difference of the Berry's phases of the model when the external magnetic field completes a period |
| Disciplinas: | Física y astronomía |
| Palabras clave: | Física, Física de partículas y campos cuánticos, Fase de Berry, Fase adiabática, Evolución adiabática no cíclica, Espín |
| Keyword: | Physics and astronomy, Particle physics and quantum fields, Physics, Berry phase, Adiabatic phase, Noncyclic adiabatic evolution, Spin |
| Texto completo: | Texto completo (Ver HTML) |
