134 citations · 703 across the 38 of their papers we have counts for
23 papers · 1 filter
Nonclassical properties and Anderson localization of quantum states in coupled waveguides
Thais L. Silva, Wesley B. Cardoso, Ardiley T. Avelar +1
We consider the propagation of light beams through disordered lattices of coupled waveguides searching for Anderson localization and investigating the evolution of nonclassical pro…
Linear semi-infinite programming approach for entanglement quantification
Thiago Mureebe Carrijo, Wesley Bueno Cardoso, Ardiley Torres Avelar
We explore the dual problem of the convex roof construction by identifying it as a linear semi-infinite programming (LSIP) problem. Using the LSIP theory, we show the absence of a…
Proposal for Anderson localization in transverse spatial degrees of freedom of photons
Rafael M. Gomes, Wesley B. Cardoso, Ardiley T. Avelar
We propose an experimental setup for studying the Anderson localization of light in the continuous transverse spatial degrees of freedom of the photons. This physical phenomenon ca…
Bohmian trajectories for bipartite entangled states
A. R de Almeida, M. A. de Ponte, W. B. Cardoso +3
We derive Bohm's trajectories from Bell's beables for arbitrary bipartite systems composed by dissipative noninteracting harmonic oscillators at finite temperature. As an applicati…
Anderson localization in the quintic nonlinear Schrödinger equation
A. T. Avelar, W. B. Cardoso
In the present paper we consider the quintic defocusing nonlinear Schrödinger equation in presence of a disordered random potential and we analyze the effects of the quintic nonlin…
Controlled teleportation via photonic Faraday rotations in low-Q cavities
W. P. Bastos, W. B. Cardoso, A. T. Avelar +2
This paper presents feasible experimental schemes to realize controlled teleportation protocols via photonic Faraday rotations in low-Q cavities. The schemes deal with controlled t…
Unidimensional reduction of the 3D Gross-Pitaevskii equation with two- and three-body interactions
W. B. Cardoso, A. T. Avelar, D. Bazeia
We deal with the three-dimensional Gross-Pitaevskii equation, which is used to describe a cloud of dilute bosonic atoms that interact under competing two- and three-body scattering…
Alternative scheme to generate a supersinglet state of three-level atoms
W. -C. Qiang, W. B. Cardoso, A. T. Avelar +1
In this paper we propose an alternative scheme to generate a supersinglet state of three three-level atoms via a single-mode of a cavity QED based on the two-photon transitions des…
Entanglement swapping of atomic states through the photonic Faraday rotation
W. P. Bastos, W. B. Cardoso, A. T. Avelar +1
We propose an entanglement swapping of atomic states confined by cavities QED using a photonic Faraday rotation. Two schemes are considered in which we use three and four cavities,…
Entropy of entangled three-level atoms interacting with entangled cavity fields: entanglement swapping
Wen-Chao Qiang, W. B. Cardoso, Xin-Hui Zhang
The dynamics of an entangled atomic system in a partial interaction with entangled cavity fields, characterizing an entanglement swapping, have been studied through the use of Von…
Solitons of two-component Bose-Einstein condensates modulated in space and time
W. B. Cardoso, A. T. Avelar, D. Bazeia +1
In this paper we present soliton solutions of two coupled nonlinear Schodinger equations modulated in the bspace and time. The approach allows us to obatin solitons with large vari…
Nonlinear Schrodinger equation with chaotic, random, and nonperiodic nonlinearity
W. B. Cardoso, S. A. Leao, A. T. Avelar +2
In this paper we deal with a nonlinear Schrödinger equation with chaotic, random, and nonperiodic cubic nonlinearity. Our goal is to study the soliton evolution, with the strength…
Modulation of breathers in cigar-shaped Bose-Einstein condensates
W. B. Cardoso, A. T. Avelar, D. Bazeia
We present new solutions to the nonautonomous nonlinear Schroedinger equation that may be realized through convenient manipulation of Bose-Einstein condensates. The procedure is ba…
Splitting of quantum information in traveling wave fields using only linear optical elements
W. B. Cardoso, N. G. de Almeida, A. T. Avelar +1
In this brief report we present a feasible scheme to split quantum information in the realm of traveling waves. An oversimplified scheme is also proposed for the generation of a cl…
Bright and Dark Solitons in a Periodically Attractive and Expulsive Potential with Nonlinearities Modulated in Space and Time
A. T. Avelar, D. Bazeia, W. B. Cardoso
This work deals with soliton solutions of the nonlinear Schroedinger equation with a diversity of nonlinearities. We solve the equation in a potential which oscillates in time betw…
Solitons with Cubic and Quintic Nonlinearities Modulated in Space and Time
A. T. Avelar, D. Bazeia, W. B. Cardoso
This work deals with soliton solutions of the nonlinear Schroedinger equation with cubic and quintic nonlinearities. We extend the procedure put forward in a recent Letter and we s…
Generation of arbitrary Fock states via resonant interactions in cavity QED
Gisana C. A. Bueno, W. B. Cardoso, A. T. Avelar +1
We propose a scheme to generate arbitrary Fock states |N> in a cavity QED using N resonant Rydberg atoms. The atom-field interaction times are controlled via Stark-shifts adjusted…
Partial teleportation of entangled atomic states
W. B. Cardoso, N. G. de Almeida
In this paper we propose a scheme for partially teleporting entangled atomic states. Our scheme can be implemented using only four two-level atoms interacting either resonantly or…
Quantum teleportation in superconducting charge qubits
R. M. Gomes, W. B. Cardoso, A. T. Avelar +1
In this paper we propose a scheme to implement a quantum teleportation based on the current experimental design [Nature (London) 431, 162 (2004); ibid 445, 515 (2007)] in which sup…
Generation of four-qubit cluster of entangled coherent states in bimodal QED cavities
E. M. Becerra-Castro, W. B. Cardoso, A. T. Avelar +1
A recent work [1] proposed a type of cluster entangled coherent states and its generation. Here we present an alternative experimental arrangement for its generation in bimodal QED…
Accuracy of a teleported trapped field state inside a single bimodal cavity
Iara P. de Queiros, Simone Souza, W. B. Cardoso +1
We propose a simplified scheme to teleport a superposition of coherent states from one mode to another of the same bimodal lossy cavity. Based on current experimental capabilities,…
Truncated states obtained by iteration
W. B. Cardoso, N. G. de Almeida
Quantum states of the electromagnetic field are of considerable importance, finding potential application in various areas of physics, as diverse as solid state physics, quantum co…
Superposition of coherent states prepared in one mode of a dissipative bimodal cavity
Iara P. de Queiros, W. B. Cardoso, N. G. de Almeida
We solve the problem of the temporal evolution of one of two-modes embedded in a same dissipative environment and investigate the role of the losses after the preparation of a cohe…