Zobrazeno 1 - 10
of 894
pro vyhledávání: '"Lupo, C"'
Autor:
Lupo, C., Andzane, J., Montemurro, D., Bauch, T., Lombardi, F., Weber, C., Rungger, I., de Graaf, S. E.
The development of nanoscale solid-state devices exploiting the promising topological surface states of topological insulator materials requires careful device engineering and improved materials quality. For instance, the introduction of a substrate,
Externí odkaz:
http://arxiv.org/abs/2112.10104
Autor:
Pirandola, S., Andersen, U. L., Banchi, L., Berta, M., Bunandar, D., Colbeck, R., Englund, D., Gehring, T., Lupo, C., Ottaviani, C., Pereira, J., Razavi, M., Shaari, J. S., Tomamichel, M., Usenko, V. C., Vallone, G., Villoresi, P., Wallden, P.
Publikováno v:
Adv. Opt. Photon. 12, 1012-1236 (2020)
Quantum cryptography is arguably the fastest growing area in quantum information science. Novel theoretical protocols are designed on a regular basis, security proofs are constantly improving, and experiments are gradually moving from proof-of-princi
Externí odkaz:
http://arxiv.org/abs/1906.01645
Autor:
Lupo, C., Angot, J.-L.
Publikováno v:
In Bulletin de l'Académie Nationale de Médecine December 2020 204(9):1017-1033
Publikováno v:
Rev. Mod. Phys. 86, 1203 (2014)
Any physical process can be represented as a quantum channel mapping an initial state to a final state. Hence it can be characterized from the point of view of communication theory, i.e., in terms of its ability to transfer information. Quantum infor
Externí odkaz:
http://arxiv.org/abs/1207.5435
Publikováno v:
J. Math. Phys. 53, 122209 (2012)
We derive the invariant measure on the manifold of multimode quantum Gaussian states, induced by the Haar measure on the group of Gaussian unitary transformations. To this end, by introducing a bipartition of the system in two disjoint subsystems, we
Externí odkaz:
http://arxiv.org/abs/1202.2456
Publikováno v:
Open Sys. & Information Dyn. 18, 1 (2011)
We study the properties of error correcting codes for noise models in the presence of asymmetries and/or correlations by means of the entanglement fidelity and the code entropy. First, we consider a dephasing Markovian memory channel and characterize
Externí odkaz:
http://arxiv.org/abs/1101.2409
Autor:
Lupo, C., Mancini, S.
Publikováno v:
Phys. Rev. A 81, 052314 (2010)
We address the question of optimality of entangled input states in quantum Gaussian memory channels. For a class of such channels, that can be traced back to the memoryless setting, we state a criterion which relate the optimality of entangled inputs
Externí odkaz:
http://arxiv.org/abs/1003.2393
Publikováno v:
Open Sys. & Information Dyn. 17, 73 (2010)
We study the dynamics of one and two qubits plunged in a q-deformed oscillators environment. Specifically we evaluate the decay of quantum coherence and entanglement in time when passing from bosonic to fermionic environments. Slowing down of decoher
Externí odkaz:
http://arxiv.org/abs/0912.3900
Publikováno v:
J.Phys.A40:13091-13100,2007
The machinery of qubit-portraits of qudit states, recently presented, is consider here in more details in order to characterize the presence of quantum correlations in bipartite qudit states. In the tomographic representation of quantum mechanics, Be
Externí odkaz:
http://arxiv.org/abs/0705.2405
Publikováno v:
J.Phys. A39 (2006) 12515-12524
The tomographic approach to quantum mechanics is revisited as a direct tool to investigate violation of Bell-like inequalities. Since quantum tomograms are well defined probability distributions, the tomographic approach is emphasized to be the most
Externí odkaz:
http://arxiv.org/abs/quant-ph/0607059