446 citations · 579 across the 11 of their papers we have counts for
7 papers · 2 filters
Quantum state transfer in a q-deformed chain
Sonia L'Innocente, Cosmo Lupo, Stefano Mancini
We investigate the quantum state transfer in a chain of particles satisfying q-deformed oscillators algebra. This general algebraic setting includes the spin chain and the bosonic…
Communication Through a Quantum Link
Vittorio Giovannetti, Daniel Burgarth, Stefano Mancini
A chain of interacting spin behaves like a quantum mediator (quantum link) which allows two distant parties that control the ends of the chain to exchange quantum messages. We show…
Communication in XYZ All-to-All Quantum Networks with a Missing Link
Sougato Bose, Andrea Casaccino, Stefano Mancini +1
We explicitate the relation between Hamiltonians for networks of interacting qubits in the XYZ model and graph Laplacians. We then study evolution in networks in which all sites ca…
Security of two-way quantum cryptography against asymmetric Gaussian attacks
Stefano Pirandola, Stefano Mancini, Seth Lloyd +1
Recently, we have shown the advantages of two-way quantum communications in continuous variable quantum cryptography. Thanks to this new approach, two honest users can achieve a no…
The decreasing property of relative entropy and the strong superadditivity of quantum channels
Grigori G. Amosov, Stefano Mancini
We argue that a fundamental (conjectured) property of memoryless quantum channels, namely the strong superadditivity, is intimately related to the decreasing property of the quantu…
A Lossy Bosonic Quantum Channel with Non-Markovian Memory
O. V. Pilyavets, V. G. Zborovskii, S. Mancini
We provide a simple and realistic model to study memory effects in a lossy bosonic quantum channel over arbitrary number of uses. The noise correlation among different uses is intr…