Double-layer Bose-Einstein condensates: A quantum phase transition in the transverse direction, and reduction to two dimensions

MCP Dos Santos, BA Malomed, WB Cardoso - Physical Review E, 2020 - APS
We revisit the problem of the reduction of the three-dimensional (3D) dynamics of Bose-
Einstein condensates, under the action of strong confinement in one direction (z), to a 2D …

Anderson localization induced by interaction in linearly coupled binary Bose-Einstein condensates

MCP Dos Santos, WB Cardoso - Physical Review E, 2021 - APS
In this paper we investigate the existence of Anderson localization induced by one specific
component of a binary Bose-Einstein condensate (BEC). We use a mean-field approach, in …

Can machine learning efficiently predict symmetry breaking in physical problems like Bose-Einstein condensates?

BM Miranda, AR de Almeida, AT Avelar… - Physica D: Nonlinear …, 2024 - Elsevier
In this work, our objective is to evaluate whether machine learning algorithms combined with
computational methods used in physical problems such as spontaneous symmetry breaking …

An effective equation for quasi-one-dimensional funnel-shaped Bose–Einstein condensates with embedded vorticity

MCP Santos, WB Cardoso, BA Malomed - The European Physical Journal …, 2022 - Springer
On the basis of a recently introduced model for the Bose–Einstein condensate (BEC)
trapped in the 2D “funnel” potential, ∼∼-r^-1-r-1, we develop analysis for vortex modes …

Effective 1D-equation with a Lambert W function nonlinearity for cigar-shaped Bose–Einstein condensates

HLC Couto, AT Avelar, WB Cardoso - Communications in Nonlinear …, 2025 - Elsevier
In this paper, we derive an effective 1D equation based on the work of Mateo and Delgado
[Phys. Rev. A 77, 013617 (2008)] that governs the axial dynamics of mean-field cigar …

Quasi-one-dimensional approximation for Bose–Einstein condensates transversely trapped by a funnel potential

MCP Dos Santos, BA Malomed… - Journal of Physics B …, 2019 - iopscience.iop.org
Starting from the standard three-dimensional (3D) Gross–Pitaevskii equation (GPE) and
using a variational approximation, we derive an effective one-dimensional nonpolynomial …

Spontaneous symmetry breaking induced by interaction in linearly coupled binary Bose–Einstein condensates

MCP dos Santos, WB Cardoso - Nonlinear Dynamics, 2023 - Springer
The spontaneous symmetry breaking (SSB) induced by a specific component of a linearly
coupled binary Bose–Einstein condensate was analyzed. The model is based on linearly …

[HTML][HTML] Symmetry breaking in Bose-Einstein condensates confined by a funnel potential

BM Miranda, MCP dos Santos, WB Cardoso - Physics Letters A, 2022 - Elsevier
In this paper we consider a Bose-Einstein condensate in self-attraction regime, confined
transversely by a funnel-like potential and axially by a double-well potential formed by the …

[HTML][HTML] Quasi-one-dimensional equation for a tube-shaped dilute Fermi gas

MCP dos Santos, WB Cardoso - Physics Letters A, 2023 - Elsevier
In this paper we consider a degenerate Fermi gas strongly confined in the transverse
direction by a singular potential. By using an appropriate factorized ansatz from the three …

[PDF][PDF] Report of Contributions

EO DI, BPER LE AZIENDE - indico.cern.ch
The bumblebee field is a self-interacting vector field whose vacuum expectation value (vev)
defines a privileged direction in spacetime. This spontaneous breaking of the Lorentz …