TY - JOUR
T1 - Breathers in systems with intrinsic and extrinsic nonlinearities
AU - Cruzeiro-Hansson, Leonor
AU - Eilbeck, John Christopher
AU - Marín, J. L.
AU - Russell, Francis Michael
PY - 2000/8/1
Y1 - 2000/8/1
N2 - We study the interplay between nonlinearity and localization in a model consisting of a quantum quasiparticle interacting with a nonlinear extended lattice. The isolated lattice can support discrete breathers, and the coupling of the quasiparticle to the lattice leads to localized quasiparticle states. Minimum energy states of the full system can have both a breather and a solitonic character. Excited states lead to interesting new phenomena, such as full breather states, which arise from the combination of intrinsic and extrinsic nonlinearity. © 2000 Elsevier Science B.V. All rights reserved.
AB - We study the interplay between nonlinearity and localization in a model consisting of a quantum quasiparticle interacting with a nonlinear extended lattice. The isolated lattice can support discrete breathers, and the coupling of the quasiparticle to the lattice leads to localized quasiparticle states. Minimum energy states of the full system can have both a breather and a solitonic character. Excited states lead to interesting new phenomena, such as full breather states, which arise from the combination of intrinsic and extrinsic nonlinearity. © 2000 Elsevier Science B.V. All rights reserved.
KW - Discrete breathers
KW - Polarons
UR - http://www.scopus.com/inward/record.url?scp=0347740255&partnerID=8YFLogxK
U2 - 10.1016/S0167-2789(00)00075-0
DO - 10.1016/S0167-2789(00)00075-0
M3 - Article
SN - 0167-2789
VL - 142
SP - 101
EP - 112
JO - Physica D: Nonlinear Phenomena
JF - Physica D: Nonlinear Phenomena
IS - 1-2
ER -