Zobrazeno 1 - 10
of 30
pro vyhledávání: '"G. H. Aguilar"'
Publikováno v:
npj Quantum Information, Vol 7, Iss 1, Pp 1-8 (2021)
Abstract 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
Externí odkaz:
https://doaj.org/article/facd8b1b447b4977ab819f3e9f48f7f1
Autor:
P. Zarkeshian, C. Deshmukh, N. Sinclair, S. K. Goyal, G. H. Aguilar, P. Lefebvre, M. Grimau Puigibert, V. B. Verma, F. Marsili, M. D. Shaw, S. W. Nam, K. Heshami, D. Oblak, W. Tittel, C. Simon
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-10 (2017)
Multipartite entanglement is of both fundamental and practical interest, but is notoriously difficult to witness and characterise. Here, Zarkeshian et al. demonstrate multipartite entanglement in an atomic frequency comb storing a single photon in a
Externí odkaz:
https://doaj.org/article/9f9c5d1d3655441b9653627c6b60966a
Publikováno v:
Physical Review Research, Vol 2, Iss 3, p 033191 (2020)
We investigate interferometric techniques to estimate the deflection angle of an optical beam and compare them to the direct detection of the beam deflection. We show that quantum metrology methods lead to a unifying treatment for both single photons
Externí odkaz:
https://doaj.org/article/38c3ed126a154edba87526a2957d3793
Publikováno v:
Physical Review X, Vol 5, Iss 3, p 031042 (2015)
Multipartite entanglement is very poorly understood despite all the theoretical and experimental advances of the last decades. Preparation, manipulation, and identification of this resource is crucial for both practical and fundamental reasons. Howev
Externí odkaz:
https://doaj.org/article/a22435aebc074d649376bcf9b7028bcf
Publikováno v:
Physical Review A. 103
We report an experimental investigation of the role of measurement in quantum metrology when the states of the probes are mixed. In particular, we investigate optimized local measurements and general global projective measurements, involving entangli
Precise measurement of the angular deviation of an object is a common task in science and technology. Many methods use light for this purpose. Some of these exploit interference effects to achieve technological advantages, such as amplification effec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::34175619b5ee38f09187d04a52f8fbd4
http://arxiv.org/abs/2005.05263
http://arxiv.org/abs/2005.05263
We investigate interferometric techniques to estimate the deflection angle of an optical beam and compare them to the direct detection of the beam deflection. We show that quantum metrology methods lead to a unifying treatment for both single photons
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::603bef6887233f418d19c71788c17490
http://arxiv.org/abs/2005.03719
http://arxiv.org/abs/2005.03719
Autor:
Adrián A. Budini, Marcelo França Santos, G. H. Aguilar, Stephen P. Walborn, Thais de Lima Silva
Publikováno v:
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
We calculate in an exact way the conditional past-future correlation for the decay dynamics of a two-level system in a bosonic bath. Different measurement processes are considered. In contrast to quantum memory measures based solely on system propaga
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::186d36e59ef2aeeaf836be8ee8f6edf3
Publikováno v:
Physical review letters. 124(12)
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
Autor:
Stephen P. Walborn, G. H. Aguilar, Thais de Lima Silva, R. V. Nery, M. M. Taddei, Leandro Aolita
Publikováno v:
npj Quantum Information, Vol 7, Iss 1, Pp 1-8 (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:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a7cf5478928b7147116fead136120d1