45 citations · 54 across the 2 of their papers we have counts for
4 papers · 1 filter
Quantum chaos induced by measurements
P. Facchi, S. Pascazio, A. Scardicchio
We study the dynamics of a "kicked" quantum system undergoing repeated measurements of momentum. A diffusive behavior is obtained for a large class of Hamiltonians, even when the d…
Wigner function and coherence properties of cold and thermal neutrons
P. Facchi, A. Mariano, S. Pascazio
We analyze the coherence properties of a cold or a thermal neutron by utilizing the Wigner quasidistribution function. We look in particular at a recent experiment performed by Bad…
Berry phase due to quantum measurements
P. Facchi, S. Pascazio
The usual, "static" version of the quantum Zeno effect consists in the hindrance of the evolution of a quantum systems due to repeated measurements. There is however a "dynamic" ve…
Modifying the lifetime of an unstable system by an intense electromagnetic field
S. Pascazio, P. Facchi
We study the temporal behavior of a three-level system (such as an atom or a molecule), initially prepared in an excited state, bathed in a laser field tuned at the transition freq…