A novel result concerning Raman coupling schemes implemented using trapped ions is obtained. By means of an operator perturbative approach, it is shown that the complete time evolution of these systems 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 dynamic. The second is a suitable correction restoring the fine dynamics suppressed by the coarse graining performed to adiabatically eliminate the nonresonantly coupled atomic level. The case where a decoherence source is present is also studied

MILITELLO B, ANIELLO P, & MESSINA A (2004). Coarse grained and fine dynamics in trapped ion Raman schemes. JOURNAL OF PHYSICS. A, MATHEMATICAL AND GENERAL, 37(33), 8177-8187 [10.1088/0305-4470/37/33/014].

Coarse grained and fine dynamics in trapped ion Raman schemes

MILITELLO, Benedetto;MESSINA, Antonino
2004

Abstract

A novel result concerning Raman coupling schemes implemented using trapped ions is obtained. By means of an operator perturbative approach, it is shown that the complete time evolution of these systems 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 dynamic. The second is a suitable correction restoring the fine dynamics suppressed by the coarse graining performed to adiabatically eliminate the nonresonantly coupled atomic level. The case where a decoherence source is present is also studied
Settore FIS/02 - Fisica Teorica, Modelli E Metodi Matematici
Settore FIS/03 - Fisica Della Materia
http://iopscience.iop.org/article/10.1088/0305-4470/37/33/014/meta
MILITELLO B, ANIELLO P, & MESSINA A (2004). Coarse grained and fine dynamics in trapped ion Raman schemes. JOURNAL OF PHYSICS. A, MATHEMATICAL AND GENERAL, 37(33), 8177-8187 [10.1088/0305-4470/37/33/014].
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10447/15850
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