24 citations · 24 across the 1 of their papers we have counts for
6 papers
Mapped Chebyshev pseudospectral method to study multiple scale phenomena
Adrian Alexandrescu, Alfonso Bueno-Orovio, Jose R. Salgueiro +1
In the framework of mapped pseudospectral methods, we introduce a new polynomial-type mapping function in order to describe accurately the dynamics of systems developing almost sin…
Stabilization of high-order solutions of the cubic Nonlinear Schrodinger Equation
Adrian Alexandrescu, Gaspar D. Montesinos, Victor M. Perez-Garcia
In this paper we consider the stabilization of non-fundamental unstable stationary solutions of the cubic nonlinear Schrodinger equation. Specifically we study the stabilization of…
Matter-wave solitons supported by dissipation
Adrian Alexandrescu, Victor M. Perez-Garcia
We show how novel types of long-lived self-localized matter waves can be constructed with Bose-Einstein condensates. The ingredients leading to such structures are a spatial phase…
Electronic and center of mass transitions driven by Laguerre-Gaussian beams
A. Alexandrescu, E. di Fabrizio, D. Cojoc
We derive the interaction Hamiltonian of a Laguerre-Gaussian beam with a simple atomic system, under the assumption of a small spread of the center of mass wave function in compari…
s-ordered phase-sum and phase-difference distribuitons of entangled coherent states
Adrian Alexandrescu, Diethard Schiller
The -ordered phase-sum and phase-difference distributions are considered for Bell-like superpositions of two-mode coherent states. The distributions are sensitive, respectively,…
Quantum spiral bandwidth of entangled two-photon states
J. P. Torres, A. Alexandrescu, L. Torner
We put forward the concept of quantum spiral bandwidth of the spatial mode function of the two-photon entangled state in spontaneous parametric downconversion. We obtain the bandwi…