Zobrazeno 1 - 10
of 128
pro vyhledávání: '"Galvão, E."'
The scalar spin chirality is a three-body physical observable that plays an outstanding role both in classical magnetism, characterizing non-coplanar spin textures, and in quantum magnetism, as an order parameter for chiral spin liquids. In quantum i
Externí odkaz:
http://arxiv.org/abs/2306.14804
Publikováno v:
Phys. Rev. A 99, 043820 (2019)
We use astigmatic transformations to characterize two-dimensional superpositions of Orbital Angular Momentum (OAM) states in laser beams. We propose two methods for doing this, both relying only on astigmatic transformations, viewed as rotations on t
Externí odkaz:
http://arxiv.org/abs/1811.02939
Autor:
Genykléa Silva de Oliveira, Ana Emília Galvão e Silva Holanda, Maria Arlete Duarte de Araújo, Javier Jerez-Roig, Maria Angela Fernandes Ferreira
Publikováno v:
Saúde em Debate, Vol 46, Iss spe2, Pp 175-189 (2022)
RESUMO O objetivo do estudo foi analisar o cumprimento do uso de, no mínimo, 30% dos recursos do Programa Nacional de Alimentação Escolar (PNAE) para a aquisição dos gêneros alimentícios provenientes da agricultura familiar no Brasil, no perí
Externí odkaz:
https://doaj.org/article/5601265bc91644b3ac6a61a288c13b7f
Autor:
Balthazar, W. F., Souza, C. E. R., Caetano, D. P., Galvão, E. F., Huguenin, J. A. O., Khoury, A. Z.
Publikováno v:
Optics Letters, Vol. 41, No. 24, page 5797 (December 15, 2016)
It is possible to prepare classical optical beams which cannot be characterized by a tensor product of vectors describing each of their degrees of freedom. Here we report the experimental creation of such a non-separable, tripartite GHZ-like state of
Externí odkaz:
http://arxiv.org/abs/1511.02265
Publikováno v:
J. Phys. B: At. Mol. Opt. Phys. 49, 055501 (2016)
We translate the quantum teleportation protocol into a sequence of coherent operations involving three degrees of freedom of a classical laser beam. The protocol, which we demonstrate experimentally, transfers the polarisation state of the input beam
Externí odkaz:
http://arxiv.org/abs/1509.06826
Autor:
Spagnolo, N., Vitelli, C., Bentivegna, M., Brod, D. J., Crespi, A., Flamini, F., Giacomini, S., Milani, G., Ramponi, R., Mataloni, P., Osellame, R., Galvao, E. F., Sciarrino, F.
Publikováno v:
Nature Photonics 8, 615 (2014)
A boson sampling device is a specialised quantum computer that solves a problem which is strongly believed to be computationally hard for classical computers. Recently a number of small-scale implementations have been reported, all based on multi-pho
Externí odkaz:
http://arxiv.org/abs/1311.1622
Autor:
Spagnolo, N., Vitelli, C., Sansoni, L., Maiorino, E., Mataloni, P., Sciarrino, F., Brod, D. J., Galvao, E. F., Crespi, A., Ramponi, R., Osellame, R.
Publikováno v:
Phys. Rev. Lett. 111, 130503 (2013)
We perform a comprehensive set of experiments that characterize bosonic bunching of up to 3 photons in interferometers of up to 16 modes. Our experiments verify two rules that govern bosonic bunching. The first rule, obtained recently in [1,2], predi
Externí odkaz:
http://arxiv.org/abs/1305.3188
Autor:
Crespi, A., Osellame, R., Ramponi, R., Brod, D. J., Galvao, E. F., Spagnolo, N., Vitelli, C., Maiorino, E., Mataloni, P., Sciarrino, F.
Publikováno v:
Nature Photonics 7, 545 (2013)
Photons naturally solve the BosonSampling problem: sample the outputs of a multi-photon experiment in a linear-optical interferometer. This is strongly believed to be hard to do on a classical computer, and motivates the development of technologies t
Externí odkaz:
http://arxiv.org/abs/1212.2783
Publikováno v:
J. Phys. A 33, 8809 (2000)
We establish relations between tripartite pure state entanglement and additivity properties of the bipartite relative entropy of entanglement. Our results pertain to the asymptotic limit of local manipulations on a large number of copies of the state
Externí odkaz:
http://arxiv.org/abs/quant-ph/0008089
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