125 citations · 1.3k across the 40 of their papers we have counts for
6 papers · 2 filters
Memory effects in quantum information transmission across a Hamiltonian dephasing channel
A. D'Arrigo, G. Benenti, G. Falci
We study a dephasing channel with memory, modelled by a multimode environment of oscillators. Focusing on the case of two channel uses, we show that memory effects can enhance the…
Quantum simulation of the single-particle Schrodinger equation
Giuliano Benenti, Giuliano Strini
The working of a quantum computer is described in the concrete example of a quantum simulator of the single-particle Schrodinger equation. We show that a register of 6-10 qubits is…
Robust and efficient generator of almost maximal multipartite entanglement
Davide Rossini, Giuliano Benenti
Quantum chaotic maps can efficiently generate pseudo-random states carrying almost maximal multipartite entanglement, as characterized by the probability distribution of bipartite…
Detecting entanglement of random states with an entanglement witness
Marko Znidaric, Tomaz Prosen, Giuliano Benenti +1
The entanglement content of high-dimensional random pure states is almost maximal, nevertheless, we show that, due to the complexity of such states, the detection of their entangle…
A bird's eye view of quantum computers
Giuliano Benenti, Giuliano Strini
Quantum computers are discussed in the general framework of computation, the laws of physics and the foundations of quantum mechanics.
Quantum Capacity of a dephasing channel with memory
Antonio D'Arrigo, Giuliano Benenti, Giuseppe Falci
We show that the amount of coherent quantum information that can be reliably transmitted down a dephasing channel with memory is maximized by separable input states. In particular,…