38 citations · 90 across the 5 of their papers we have counts for
6 papers
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…
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…
Total Quantum Zeno Effect beyond Zeno Time
D. Mundarain, M. Orszag, J. Stephany
In this work we show that is possible to obtain Total Quantum Zeno Effect in an unstable systems for times larger than the correlation time of the bath. The effect is observed for…
Decoherence Free Subspace and entanglement by interaction with a common squeezed bath
D. Mundarain, M. Orszag
In this work we find explicitly the decoherence free subspace (DFS) for a two two-level system in a common squeezed vacuum bath. We also find an orthogonal basis for the DFS compos…
Total Quantum Zeno effect and Intelligent States for a two level system in a squeezed bath
D. Mundarain, M. Orszag, J. Stephany
In this work we show that by frequent measurements of adequately chosen observables, a complete suppression of the decay in an exponentially decaying two level system interacting w…
Instability and entanglement of the ground state of the Dicke model
Vladimir Buzek, Miguel Orszag, Marian Rosko
Using tools of quantum information theory we show that the ground state of the Dicke model exhibits an infinite sequence of instabilities (quantum-phase-like transitions). These tr…