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6 papers · 2 filters
Semiclassical Dynamics of the Jaynes-Cummings Model
Adrian Alscher, Hermann Grabert
The semiclassical approximation of coherent state path integrals is employed to study the dynamics of the Jaynes-Cummings model. Decomposing the Hilbert space into subspaces of giv…
Dynamics of multiply charged ions in intense laser fields
S. X. Hu, C. H. Keitel
We numerically investigate the dynamics of multiply charged hydrogenic ions in near-optical linearly polarized laser fields with intensities of order 10^16 to 10^17 W/cm^2. Dependi…
Robustness and diffusion of pointer states
Lajos Diosi, Claus Kiefer
Classical properties of an open quantum system emerge through its interaction with other degrees of freedom (decoherence). We treat the case where this interaction produces a Marko…
Ground state laser cooling using electromagnetically induced transparency
Giovanna Morigi, Juergen Eschner, Christoph H. Keitel
A laser cooling method for trapped atoms is described which achieves ground state cooling by exploiting quantum interference in a driven Lambda-shaped arrangement of atomic levels.…
Classical and quantum dynamics of a spin-1/2
Adrian Alscher, Hermann Grabert
We reply to a comment on `Semiclassical dynamics of a spin-1/2 in an arbitrary magnetic field'.
Stochastic dynamics of electronic wave packets in fluctuating laser fields
B. Eggers, G. Alber
The dynamics of a laser-excited Rydberg electron under the influence of a fluctuating laser field are investigated. Rate equations are developed which describe these dynamics in th…