M
Marcelo Martinelli
Researcher at University of São Paulo
Publications - 88
Citations - 828
Marcelo Martinelli is an academic researcher from University of São Paulo. The author has contributed to research in topics: Quantum entanglement & Optical parametric oscillator. The author has an hindex of 18, co-authored 79 publications receiving 718 citations. Previous affiliations of Marcelo Martinelli include University of Toronto & Pierre-and-Marie-Curie University.
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Orbital angular momentum exchange in an optical parametric oscillator
TL;DR: In this paper, the orbital angular momentum transfer from pump to down-converted beams in a type-II optical parametric oscillator was investigated and Cavity and anisotropy effects were investigated and demonstrated to play a central role in the transverse mode dynamics.
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Robustness of bipartite Gaussian entangled beams propagating in lossy channels
Felippe A. S. Barbosa,A. S. Coelho,A. J. de Faria,Katiuscia N. Cassemiro,Alessandro S. Villar,Paulo Nussenzveig,Marcelo Martinelli +6 more
TL;DR: In this article, the authors investigated the conditions under which optical loss destroys entanglement, and report states that are particularly robust to such losses, and analyzed properties of states which are robust against losses.
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Experimental study of the spatial distribution of quantum correlations in a confocal optical parametric oscillator
TL;DR: In this paper, the spatial distribution of quantum noise in the twin beams produced by a type-II optical parametric oscillator operating in a confocal cavity above threshold was studied experimentally and the measured intensity correlations were at the same time below the standard quantum limit and not uniformly distributed inside the beams.
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Generation of bright squeezed light at 1.06 μm using cascaded nonlinearities in a triply resonant cw periodically-poled lithium niobate optical parametric oscillator
TL;DR: In this article, an ultralow threshold continuous-wave optical parametric oscillator (OPO) was used to reduce the quantum fluctuations of the reflected pump beam below the shot noise limit.
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Entanglement in the above-threshold optical parametric oscillator
Alessandro S. Villar,Katiuscia N. Cassemiro,Kaled Dechoum,Antonio Z. Khoury,Marcelo Martinelli,Paulo Nussenzveig +5 more
TL;DR: In this article, the authors investigated entanglement in the above-threshold optical parametric oscillator, both theoretically and experimentally, and discussed its potential applications to quantum information.