English
 
Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Control of electron and electron–hole pair dynamics on nonlinear lattice bilayers by strong solitons

Authors

Chetverikov,  A. P.
External Organizations;

Ebeling,  W.
External Organizations;

/persons/resource/eckehard.schoell

Schöll,  Eckehard
Potsdam Institute for Climate Impact Research;

Velarde,  M. G.
External Organizations;

External Ressource
No external resources are shared
Fulltext (public)
There are no public fulltexts stored in PIKpublic
Supplementary Material (public)
There is no public supplementary material available
Citation

Chetverikov, A. P., Ebeling, W., Schöll, E., Velarde, M. G. (2021): Control of electron and electron–hole pair dynamics on nonlinear lattice bilayers by strong solitons. - Chaos, 31, 8, 083123.
https://doi.org/10.1063/5.0057084


Cite as: https://publications.pik-potsdam.de/pubman/item/item_26491
Abstract
We consider the dynamics of electrons and holes moving in two-dimensional lattice layers and bilayers. As an example, we study triangular lattices with units interacting via anharmonic Morse potentials and investigate the dynamics of excess electrons and electron–hole pairs according to the Schrödinger equation in the tight binding approximation. We show that when single-site lattice solitons or M-solitons are excited in one of the layers, those lattice deformations are capable of trapping excess electrons or electron–hole pairs, thus forming quasiparticle compounds moving approximately with the velocity of the solitons. We study the temporal and spatial nonlinear dynamical evolution of localized excitations on coupled triangular double layers. Furthermore, we find that the motion of electrons or electron–hole pairs on a bilayer is slaved by solitons. By case studies of the dynamics of charges bound to solitons, we demonstrate that the slaving effect may be exploited for controlling the motion of the electrons and holes in lattice layers, including also bosonic electron–hole–soliton compounds in lattice bilayers, which represent a novel form of quasiparticles.