927 citations
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11 papers · 1 filter
On the structure of generators for non-Markovian Master Equations
Andrzej Kossakowski, Rolando Rebolledo
Complete characterization of complete positivity preserving non-Markovian master equations is presented.
Quantum recoil effects in finite-time disentanglement of two distinguishable atoms
F. Lastra, S. Wallentowitz, M. Orszag +1
Starting from the requirement of distinguishability of two atoms by their positions, it is shown that photon recoil has a strong influence on finite-time disentanglement and in som…
Spontaneous recoil effects of optical pumping on trapped atoms
S. Wallentowitz, P. E. Toschek
The recoil effects of spontaneous photon emissions during optical pumping of a trapped three-level atom are exactly calculated. Without resort to the Lamb-Dicke approximation, and…
Photo-detection using Bose-condensed atoms in a micro trap
S. Wallentowitz, A. B. Klimov
A model of photo-detection using a Bose--Einstein condensate in an atom-chip based micro trap is analyzed. Atoms absorb photons from the incident light field, receive part of the p…
Sudden Birth Versus Sudden Death of Entanglement in Multipartite Systems
C. E. Lopez, G. Romero, F. Lastra +2
We study the entanglement dynamics of two cavities interacting with independent reservoirs. Expectedly, we observe that, as the cavity entanglement is depleted, it is transferred t…
Decoherence versus disentanglement for two qubits in a squeezed bath
Maritza Hernandez, Miguel Orszag
We study the relation between the sudden death and revival of the entanglement of two qubits in a common squeezed reservoir, and the normal decoherence, by getting closer to the De…