Zobrazeno 1 - 10
of 160
pro vyhledávání: '"Aolita, L."'
Publikováno v:
npj Quantum Inf 7, 69 (2021)
The celebrated Einstein-Podolsky-Rosen quantum steering has a complex structure in the multipartite scenario. We show that a naively defined criterion for multipartite steering allows, like in Bell nonlocality, for a contradictory effect whereby loca
Externí odkaz:
http://arxiv.org/abs/1910.12884
Publikováno v:
Phys. Rev. Lett. 124, 120402 (2020)
We show -- both theoretically and experimentally -- that Einstein-Podolsky-Rosen steering can be distilled. We present a distillation protocol that outputs a perfectly correlated system -- the singlet assemblage -- in the asymptotic infinite-copy lim
Externí odkaz:
http://arxiv.org/abs/1906.00991
Publikováno v:
Phys. Rev. Lett. 120, 140408 (2018)
We theoretically predict, and experimentally verify with entangled photons, that outcome communication is not enough for hidden-state models to reproduce quantum steering. Hidden-state models with outcome communication correspond, in turn, to the wel
Externí odkaz:
http://arxiv.org/abs/1712.08624
We develop a unified approach to classical, quantum and post-quantum steering. The framework is based on uncharacterised (black-box) parties performing quantum measurements on their share of a (possibly unphysical) quantum state, and its starting poi
Externí odkaz:
http://arxiv.org/abs/1708.00756
Publikováno v:
Phys. Rev. Lett. 120, 190501 (2018)
The experimental interest and developments in quantum spin-1/2-chains has increased uninterruptedly over the last decade. In many instances, the target quantum simulation belongs to the broader class of non-interacting fermionic models, constituting
Externí odkaz:
http://arxiv.org/abs/1703.03152
Publikováno v:
Phys. Rev. A 94, 032106 (2016)
We study multipartite Bell nonlocality in a framework native of multipartite Einstein-Podolsky-Rosen (EPR) steering scenarios with a single trusted measurement device. We derive a closed-form necessary and sufficient criterion for systems composed of
Externí odkaz:
http://arxiv.org/abs/1603.05247
Publikováno v:
Nature Comm. 6, 8498 (2015)
A major roadblock for large-scale photonic quantum technologies is the lack of practical reliable certification tools. We introduce an experimentally friendly - yet mathematically rigorous - certification test for experimental preparations of arbitra
Externí odkaz:
http://arxiv.org/abs/1407.4817
Autor:
Aguilar, G. H., Kolb, T., Cavalcanti, D., Aolita, L., Chaves, R., Walborn, S. P., Ribeiro, P. H. Souto
Publikováno v:
Phys. Rev. Lett. 112, 160501 (2014)
A measurement-based quantum computer could consist of a local-gapped Hamiltonian system, whose thermal states --at sufficiently low temperature-- are universal resources for the computation. Initialization of the computer would correspond to cooling
Externí odkaz:
http://arxiv.org/abs/1401.4078
Boson-Sampling is a classically computationally hard problem that can - in principle - be efficiently solved with quantum linear optical networks. Very recently, a rush of experimental activity has ignited with the aim of developing such devices as f
Externí odkaz:
http://arxiv.org/abs/1306.3995
Autor:
D'Ambrosio, V., Spagnolo, N., Del Re, L., Slussarenko, S., Li, Y., Kwek, L. C., Marrucci, L., Walborn, S. P., Aolita, L., Sciarrino, F.
Publikováno v:
Nature Communications 4:2432 (2013)
Quantum metrology bears a great promise in enhancing measurement precision, but is unlikely to become practical in the near future. Its concepts can nevertheless inspire classical or hybrid methods of immediate value. Here, we demonstrate NOON-like p
Externí odkaz:
http://arxiv.org/abs/1306.1606