Resumen
Using the Hubbard representation for SU(2), we write the time-evolution operator of a two-level system in the disentangled form. This allows us to map the corresponding dynamical law into a set of nonlinear coupled equations. In order to find exact solutions, we use an inverse approach and find families of time-dependent Hamiltonians whose off-diagonal elements are connected with the Ermakov equation. A physical model with the so-obtained Hamiltonians is discussed in the context of the nuclear magnetic resonance phenomenon.
Idioma original | Inglés |
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Número de artículo | 567 |
Publicación | Symmetry |
Volumen | 10 |
N.º | 11 |
DOI | |
Estado | Publicada - 1 nov. 2018 |