Contribution of adiabatic phases to noncyclic evolution
AUTOR(ES)
Thomaz, M.T., Aguiar Pinto, A.C., Moutinho, M.
FONTE
Brazilian Journal of Physics
DATA DE PUBLICAÇÃO
2010-06
RESUMO
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.
Documentos Relacionados
- Adiabatic evolution of plasma equilibrium
- Evolution of Complex Phases in Al-Fe-Si Systems
- The Evolution of the Vertebral Column. A Contribution to the Study of Vertebrate Phylogeny
- Contribution of Gene Loss to the Pathogenic Evolution of Burkholderia pseudomallei and Burkholderia mallei
- Domains in viroids: evidence of intermolecular RNA rearrangements and their contribution to viroid evolution.