2.8k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of MilanIT3.7k papers
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6 papers · 2 filters
Quantum and classical features in the explanation of collisional decoherence
B. Vacchini
A most simple theoretical argument is given in order to explain the quantitative estimate of the effect of collisional decoherence in matter-wave interferometry. The argument highl…
Entanglement Echoes in Quantum Computation
Davide Rossini, Giuliano Benenti, Giulio Casati
We study the stability of entanglement in a quantum computer implementing an efficient quantum algorithm, which simulates a quantum chaotic dynamics. For this purpose, we perform a…
Stability of Quantum Motion: Beyond Fermi-golden-rule and Lyapunov decay
Wen-ge Wang, G. Casati, Baowen Li
We study, analytically and numerically, the stability of quantum motion for a classically chaotic system. We show the existence of different regimes of fidelity decay which deviate…
Measurement and Information Extraction in Complex Dynamics Quantum Computation
G. Casati, S. Montangero
We address the problem related to the extraction of the information in the simulation of complex dynamics quantum computation. Here we present an example where important informatio…
Spin-1/2 geometric phase driven by decohering quantum fields
A. Carollo, I. Fuentes-Guridi, M. Franca Santos +1
We calculate the geometric phase of a spin-1/2 system driven by a one and two mode quantum field subject to decoherence. Using the quantum jump approach, we show that the correctio…
Master-equations for the study of decoherence
Bassano Vacchini
Different structures of master-equation used for the description of decoherence of a microsystem interacting through collisions with a surrounding environment are considered and co…