664 citations · 5.1k across the 160 of their papers we have counts for
7 papers · 2 filters
Relaxation due to random collisions with a many-qudit environment
Giuseppe Gennaro, Giuliano Benenti, G. Massimo Palma
We analyze the dynamics of a system qudit of dimension mu sequentially interacting with the nu-dimensional qudits of a chain playing the ore of an environment. Each pairwise collis…
Gaussian wave packets in phase space: The Fermi g_F function
Giuliano Benenti, Giuliano Strini
Any pure quantum state can be equivalently represented by means of its wave function psi(q) or of the Fermi function g_F(q,p), with q and p coordinates and conjugate momenta of the…
Optimal purification of a generic n-qudit state
Giuliano Benenti, Giuliano Strini
We propose a quantum algorithm for the purification of a generic mixed state of a -qudit system by using an ancillary -qudit system. The algorithm is optimal in that (i)…
How complex is the quantum motion?
Giuliano Benenti, Giulio Casati
In classical mechanics the complexity of a dynamical system is characterized by the rate of local exponential instability which effaces the memory of initial conditions and leads t…
Entanglement, randomness and chaos
Giuliano Benenti
Entanglement is not only the most intriguing feature of quantum mechanics, but also a key resource in quantum information science. The entanglement content of random pure quantum s…
Memory effects in a Markov chain dephasing channel
Antonio D'Arrigo, Elena De Leo, Giuliano Benenti +1
We study a dephasing channel with memory, modelled by a Markov chain. We show that even weak memory effects have a detrimental impact on the performance of quantum error correcting…