activity
20202025
most citedSpatial distribution of two symmetric four-wave mixing signals induced by Gaussian beams

7 citations · 8 across the 5 of their papers we have counts for

collaborators

5 papers

quant-ph2025★ 1 cited

Spatial correlations in four-wave mixing with structured light

Mateus R. L. da Motta, Sandra S. Vianna

We present a detailed theoretical treatment of four-wave mixing (FWM) in a quantized paraxial framework, capturing the multi-spatial-mode nature of the biphoton state generated in…

quant-ph2025

The Bloch Equation Generator -- SimuFísica

M. P. M. de Souza, G. H. H. Pavão, A. A. C. de Almeida +1

The interaction between multilevel quantum systems and coherent radiation underlies several phenomena in modern atomic optics. The formulation and solution of the Bloch equations,…

physics.optics2025

Intensity correlations in transmission and four-wave mixing signals intermediated by hot rubidium atoms

A. A. C. de Almeida, A. S. Alvarez, N. R. de Melo +3

We investigate the influence of the distribution of atom velocities in a hot rubidium sample on the correlation between field-intensity fluctuations of two independently generated…

physics.optics2022★ 7 cited

Spatial distribution of two symmetric four-wave mixing signals induced by Gaussian beams

Mateus R. L. da Motta, Alexandre A. C. de Almeida, Sandra S. Vianna

We present a theoretical analysis of the spatial shape of two symmetric signals of degenerate four-wave mixing induced by Gaussian beams in a thin sample of two-level atoms. Our ca…

physics.optics2020

Two symmetric four-wave mixing signals generated in a medium with anomalous refractive index

A. S. Alvarez, A. A. C. de Almeida, S. S. Vianna

We report experimental and theoretical results of two symmetrical signals of degenerate four-wave mixing generated in rubidium vapor. Both nonlinear signals are induced by two almo…