6533b827fe1ef96bd1286533
RESEARCH PRODUCT
Coarse grained and fine dynamics in trapped ion Raman schemes
Antonino MessinaPaolo AnielloBenedetto Militellosubject
PhysicsQuantum PhysicsSettore FIS/02 - Fisica Teorica Modelli E Metodi MatematiciOperator (physics)Time evolutionFOS: Physical sciencesGeneral Physics and AstronomyStatistical and Nonlinear PhysicsContext (language use)ATOMCoupling (probability)Settore FIS/03 - Fisica Della MateriaIonComputational physicssymbols.namesakeSTATESInteraction picturesymbolsGranularityQuantum Physics (quant-ph)Raman spectroscopyMathematical Physicsdescription
A novel result concerning Raman coupling schemes in the context of trapped ions is obtained. By means of an operator perturbative approach, it is shown that the complete time evolution of these systems (in the interaction picture) can be expressed, with a high degree of accuracy, as the product of two unitary evolutions. The first one describes the time evolution related to an effective coarse grained dynamics. The second is a suitable correction restoring the {\em fine} dynamics suppressed by the coarse graining performed to adiabatically eliminate the nonresonantly coupled atomic level.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2004-01-01 | Journal of Physics A: Mathematical and General |