Wave transmission in nonlinear lattices

D Hennig, GP Tsironis - Physics Reports, 1999 - Elsevier
The interplay of nonlinearity with lattice discreteness leads to phenomena and propagation
properties quite distinct from those appearing in continuous nonlinear systems. For a large …

Coherent oscillations between two weakly coupled Bose-Einstein condensates: Josephson effects, oscillations, and macroscopic quantum self-trapping

S Raghavan, A Smerzi, S Fantoni, SR Shenoy - Physical Review A, 1999 - APS
We discuss the coherent atomic oscillations between two weakly coupled Bose-Einstein
condensates. The weak link is provided by a laser barrier in a (possibly asymmetric) double …

Numerically induced chaos in the nonlinear Schrödinger equation

BM Herbst, MJ Ablowitz - Physical Review Letters, 1989 - APS
The cubic nonlinear Schrödinger equation and some of its discretizations, one of which is
integ-rable, are studied. Apart from the integrable version the discretizations produce chaotic …

Transitions in coherent oscillations between two trapped Bose-Einstein condensates

S Raghavan, A Smerzi, VM Kenkre - Physical Review A, 1999 - APS
By solving numerically the tunneling quantum dynamics between two trapped Bose-Einstein
condensates (BEC's), we find two distinct time scales. On the short time scale, we recover …

Coherent atomic oscillations and resonances between coupled Bose-Einstein condensates with time-dependent trapping potential

FK Abdullaev, RA Kraenkel - Physical Review A, 2000 - APS
We study the quantum coherent tunneling between two Bose-Einstein condensates
separated through an oscillating trap potential. The cases of slow and rapid varying in the …

[图书][B] Theory of the spread of epidemics and movement ecology of animals: an interdisciplinary approach using methodologies of physics and mathematics

VMN Kenkre, L Giuggioli - 2021 - books.google.com
Exploiting powerful techniques from physics and mathematics, this book studies animal
movement in ecology, with a focus on epidemic spread. Pulmonary syndrome is not only …

[图书][B] Memory functions, projection operators, and the defect technique: some tools of the trade for the condensed matter physicist

VMN Kenkre - 2021 - books.google.com
This book provides a graduate-level introduction to three powerful and closely related
techniques in condensed matter physics: memory functions, projection operators, and the …

Existence and stability of quasiperiodic breathers in the discrete nonlinear Schrödinger equation

M Johansson, S Aubry - Nonlinearity, 1997 - iopscience.iop.org
We show that the discrete nonlinear Schrödinger (DNLS) equation exhibits exact solutions
which are quasiperiodic in time and localized in space if the ratio between the nonlinearity …

Disorder in the discrete nonlinear Schrödinger equation

MI Molina, GP Tsironis - International Journal of Modern Physics B, 1995 - World Scientific
We study the interplay of disorder and nonlinearity in condensed matter systems modeled by
the paradigmatic discrete nonlinear Schrödinger equation and focus on selftrapping and …

Local field effects in excitonic population transfer in a driven quantum dot system

E Paspalakis, A Kalini, AF Terzis - Physical Review B—Condensed Matter and …, 2006 - APS
We study theoretically the influence of local fields in the excitonic population dynamics of a
quantum dot system under the interaction with either CW or pulsed and appropriately …