activity
20142026
most citedWeak-value amplification as an optimal metrological protocol

59 citations · 132 across the 9 of their papers we have counts for

collaborators

9 papers

quant-ph2026

Gouy phase engineering of self-splitting quantum correlations

A. L. S. Santos Junior, M. Damaceno, A. C. Barbosa +4

In this work, we demonstrate the effect of self-splitting spatial quantum correlations induced by Gouy phase engineering. In the process of spontaneous parametric down conversion t…

physics.optics2023★ 3 cited

Poincaré sphere symmetries in four-wave mixing with orbital angular momentum

Mateus Rattes Lima da Motta, Gabriel Bié Alves, Antonio Zelaquett Khoury +1

We explore a degenerate four-wave mixing process induced by transversely structured light beams in a rubidium vapor cell. In particular, we consider the nonlinear interaction drive…

physics.optics2021★ 7 cited

Generalized Orbital Angular Momentum Symmetry in Parametric Amplification

R. B. Rodrigues, G. B. Alves, R. F. Barros +2

We investigate interesting symmetry properties verified by the down-converted beams produced in optical parametric amplification with structured light. We show that the Poincaré sp…

quant-ph2020★ 4 cited

Quantum-controlled cluster states

R. F. Barros, G. B. Alves, O. Pfister +1

Quantum optical cluster states have been increasingly explored, in the light of their importance for measurement-based quantum computing. Here we set forth a new method for generat…

physics.optics2020★ 5 cited

Gouy-phase effects in the frequency combs of an optical parametric oscillator

R. F. Barros, G. B. Alves, A. Z. Khoury

We investigate the transverse mode effects on the frequency combs generated by a type-I optical parametric oscillator (OPO) below threshold. We take the diffraction effects fully i…

physics.optics2019★ 2 cited

Fine-tuning of orbital angular momentum in an optical parametric oscillator

R. F. Barros, G. B. Alves, D. S. Tasca +2

We investigate the dynamical properties of a type-II optical parametric oscillator pumped by a structured light beam carrying orbital angular momentum. Different dynamical regimes…

physics.optics2018★ 35 cited

Conditions for optical parametric oscillation with structured light pump

G. B. Alves, R. F. Barros, D. S. Tasca +2

We investigate the transverse mode structure of the down-converted beams generated by a type-II optical parametric oscillator (OPO) driven by a structured pump. Our analysis focus…

quant-ph2016★ 17 cited

Achieving metrological precision limits through post-selection

G. Bié Alves, A. Pimentel, M. Hor-Meyll +3

Post-selection strategies have been proposed with the aim of amplifying weak signals, which may help to overcome detection thresholds associated with technical noise in high-precis…

quant-ph2014★ 59 cited

Weak-value amplification as an optimal metrological protocol

G. Bié Alves, B. M. Escher, R. L. de Matos Filho +2

The implementation of weak-value amplification requires the pre- and post-selection of states of a quantum system, followed by the observation of the response of the meter, which i…