Quantifying the nonlinearity of a quantum oscillator

MGA Paris, MG Genoni, N Shammah, B Teklu - Physical Review A, 2014 - APS
We address the quantification of nonlinearity for quantum oscillators and introduce two
measures based on the properties of the ground state rather than on the form of the potential …

Application of the Lagrangian variational method to a one-dimensional Bose gas in a dimple trap

RR Sakhel, AR Sakhel - Journal of Physics B: Atomic, Molecular …, 2017 - iopscience.iop.org
We present an application of the Lagrangian variational method (LVM) to study the small-
oscillation dynamics and ground-state properties of an interacting Bose gas in a one …

Elements of Vortex-Dipole Dynamics in a Nonuniform Bose–Einstein Condensate

RR Sakhel, AR Sakhel - Journal of Low Temperature Physics, 2016 - Springer
The elements of the vortex-dipole (VD) dynamics are numerically examined in a nonuniform
Bose–Einstein condensate (BEC) using the time-dependent Gross–Pitaevskii equation that …

Ladder operators and squeezed coherent states of a three-dimensional generalized isotonic nonlinear oscillator

VC Ruby, S Karthiga… - Journal of Physics A …, 2012 - iopscience.iop.org
We explore squeezed coherent states of a three-dimensional generalized isotonic oscillator
whose radial part is the newly introduced generalized isotonic oscillator whose bound state …

Integrability of the one dimensional Schrödinger equation

T Combot - Journal of Mathematical Physics, 2018 - pubs.aip.org
We present a definition of integrability for the one-dimensional Schrödinger equation, which
encompasses all known integrable systems, ie, systems for which the spectrum can be …

Elements of Dynamics of a One-Dimensional Trapped Bose–Einstein Condensate Excited by a Time-Dependent Dimple: A Lagrangian Variational Approach

AR Sakhel, RR Sakhel - Journal of Low Temperature Physics, 2018 - Springer
We examine the dynamics of a one-dimensional harmonically trapped Bose–Einstein
condensate (BEC), induced by the addition of a dimple trap whose depth oscillates with …

Supersymmetric quantum mechanics: Engineered hierarchies of integrable potentials and related orthogonal polynomials

D Balondo Iyela, J Govaerts… - Journal of Mathematical …, 2013 - pubs.aip.org
Within the context of supersymmetric quantum mechanics and its related hierarchies of
integrable quantum Hamiltonians and potentials, a general programme is outlined and …

Supersymmetric Quantum Mechanics, Engineered Hierarchies of Integrable Potentials, and the Generalised Laguerre Polynomials

DB Iyela, J Govaerts, MN Hounkonnou - arXiv preprint arXiv:1209.0182, 2012 - arxiv.org
Within the context of Supersymmetric Quantum Mechanics and its related hierarchies of
integrable quantum Hamiltonians and potentials, a general programme is outlined and …

Realization of a striped superfluid with ultracold dipolar bosons: phase competition, symmetry enhancement and vortex softening

JM Fellows - 2013 - etheses.bham.ac.uk
In this thesis we develop a model of ultracold dipolar bosons in a highly anisotropic quasi-
one-dimensional optical lattice. We will see that the model is identical to one describing …