Search Results - "da Paz, I. G"

Open quantum behaviour manifested in the double-slit experiment by Marinho, L. S., de Sá Neto, O. P., Sampaio, Marcos, Costa, Helder A. S., da Paz, I. G.

“…In certain analyses of quantum systems, it is common to disregard the dissipation effect and focus solely on decoherence. This is because decoherence typically…”
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Entanglement of self-interacting scalar fields in an expanding spacetime by Alexander, Helder, de Souza, Gustavo, Mansfield, Paul, da Paz, I. G., Sampaio, Marcos

“…We evaluate self-interaction effects on the quantum correlations of field modes of opposite momenta for scalar theory in a two-dimensional asymptotically flat…”
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Quantum-to-classical transition measure of large molecule diffraction by Marinho, L. S., Costa, H. A. S., Sampaio, Marcos, da Paz, I. G.

“…We study the quantum-to-classical transition induced by the loss of coherence in the double-slit experiment with large molecules. We introduce the effects of…”
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Experimental proposal for measuring the Gouy phase of matter waves by da Paz, I G, Saldanha, P L, Nemes, M C, Peixoto de Faria, J G

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Atomic focusing by quantum fields: Entanglement properties by da Paz, I.G., Frazão, H.M., Nemes, M.C., Peixoto de Faria, J.G.

“…The coherent manipulation of the atomic matter waves is of great interest both in science and technology. In order to study how an atom optic device alters the…”
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Indirect evidence for the Gouy phase for matter waves by da Paz, I.G., Nemes, M.C., Pádua, S., Monken, C.H., de Faria, J.G. Peixoto

“…We show that the well-known geometric phase, the Gouy phase in optics can be defined for matter waves in vacuum as well. In particular we show that the…”
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Entanglement and scattering in quantum electrodynamics: S-matrix information from an entangled spectator particle by Fonseca, Juan D, Hiller, B, Araujo, J. B, da Paz, I. G, Sampaio, Marcos

“…We consider a general quantum field relativistic scattering involving two half spin fermions, $A$ and $B$, which are initially entangled with another fermion…”
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Biphoton phase-space correlations from Gouy-phase measurements using double slits by de Brito, F. C. V, da Paz, I. G, Araujo, J. B, Sampaio, M

“…Physical Review A 104, 062430 (2021) Quantum correlations encoded in photonic Laguerre-Gaussian modes were shown to be related to the Gouy phase shifts (D…”
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Irrealism from fringe visibility in matter-wave double-slit interference with initial contractive states by Lustosa, F. R, Dieguez, P. R, da Paz, I. G

“…Phys. Rev. A 102, 052205 (2020) The elements of reality coined by Einstein, Podoslky, and Rosen promoted a series of fundamental discussions involving the…”
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Gouy phase of type-I SPDC-generated biphotons by de Brito, F. C. V, da Paz, I. G, Hiller, Brigitte, Araujo, Jonas B, Sampaio, Marcos

“…We consider a double Gaussian approximation to describe the wavefunction of twin photons (also called a biphoton) created in a nonlinear crystal via a type-I…”
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Sorkin parameter for type-I spontaneous parametric down-conversion biphotons and matter waves by de Brito, F. C. V, Vieira, C. H. S, da Paz, I. G, Araujo, J. B, Sampaio, M

“…We propose experimental measurements of the logarithmic negativity, which quantifies quantum correlations using Gouy phase measurements in an asymmetric…”
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Measuring a QED cross section via a witness particle by Araujo, Jonas B, Hiller, B, da Paz, I. G, Sampaio, Marcos, Costa, H. A. S

“…Phys. Rev. D 100, 105018 (2019) We consider a QED scattering ($AB\rightarrow AB$), in which $B$ is initially entangled with a third particle ($C$) that does…”
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Entanglement between two scalar fields in an expanding spacetime by Alexander, Helder, da Paz, I. G, Sampaio, Marcos

“…We study the evolution of the two scalar fields entangled via a mutual interaction in an expanding spacetime. We compute the logarithmic negativity to leading…”
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Parameter estimation for a Lorentz invariance violation by Costa, H. A. S, Carvalho, P. R. S, da Paz, I. G

“…Int. J. Mod. Phys. D, V. 28, P. 1950028, 2018 We employ techniques from quantum estimation theory (QET) to estimate the Lorentz violation parameters in the…”
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Gouy phase of type-I SPDC-generated biphotons by de Brito, F.C.V., da Paz, I.G., Hiller, Brigitte, Araujo, Jonas B., Sampaio, Marcos

“…•Wavefunction of twin photons created in a nonlinear crystal via a type-I SPDC process.•Gouy phase for the biphoton wavefunction.•Logarithmic negativity and…”
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Thermal signature of the Unruh effect in the interference pattern by Lopes, H.T., da Paz, I.G., Carvalho, P.R.S., Costa, H.A.S.

“…•Interferometry and fringe visibility.•Uniformly accelerated detectors.•Unruh effect modifies the interference pattern.•Relation between the visibility and the…”
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Entanglement of self interacting scalar fields in an expanding spacetime by Alexander, Helder, de Souza, Gustavo, Mansfield, Paul, da Paz, I. G, Sampaio, Marcos

“…We evaluate self-interaction effects on the quantum correlations of field modes of opposite momenta for scalar $\lambda \phi^4$ theory in a two-dimensional…”
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Ramsey interferometry as a witness of acceleration radiation by Costa, H.A.S., da Paz, I.G., Carvalho, P.R.S., Sampaio, Marcos

“…We adapt a typical Ramsey interferometer by inserting a linear accelerator capable of accelerating an atom inside a single-mode cavity. We demonstrate that…”
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Exotic looped trajectories via quantum marking by OliveiraJr, J. G. G. de, de Souza, Gustavo, Cabral, L. A, da Paz, I. G, Sampaio, Marcos

“…We provide an analytical and theoretical study of exotic looped trajectories (ELTs) in a double-slit interferometer with quantum marking. We use an excited…”
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Poisson's spot and Gouy phase by da Paz, I. G, Soldati, Rodolfo, Cabral, L. A, OliveiraJr, J. G. G. de, Sampaio, Marcos

“…Phys. Rev. A 94, 063609 (2016) Recently there have been experimental results on Poisson spot matter wave interferometry followed by theoretical models…”
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