Zobrazeno 1 - 10
of 488
pro vyhledávání: '"M. I. Molina"'
Autor:
U Naether, S Stützer, R A Vicencio, M I Molina, A Tünnermann, S Nolte, T Kottos, D N Christodoulides, A Szameit
Publikováno v:
New Journal of Physics, Vol 15, Iss 1, p 013045 (2013)
We experimentally observe anomalous wavepacket evolution in a realization of a one-dimensional finite binary Anderson model in the presence of short-range correlations. To this end, we employ weakly-coupled optical waveguides with propagation constan
Externí odkaz:
https://doaj.org/article/e990314513d44ae78b14cfa28c5a3ad4
Autor:
Zito, Gianluigi1 (AUTHOR), Siciliano, Giulia2 (AUTHOR), Seifalinezhad, Aida1,3 (AUTHOR), Miranda, Bruno1 (AUTHOR), Lanzio, Vittorino4 (AUTHOR), Schwartzberg, Adam4 (AUTHOR), Gigli, Giuseppe2 (AUTHOR), Turco, Antonio2 (AUTHOR), Rendina, Ivo1 (AUTHOR), Mocella, Vito1 (AUTHOR), Primiceri, Elisabetta2 (AUTHOR) elisabetta.primiceri@cnr.it, Romano, Silvia1 (AUTHOR) silvia.romano@cnr.it
Publikováno v:
Advanced Science. 11/6/2024, Vol. 11 Issue 41, p1-11. 11p.
Publikováno v:
AMERICAN JOURNAL OF PHYSICS
Artículos CONICYT
CONICYT Chile
instacron:CONICYT
Artículos CONICYT
CONICYT Chile
instacron:CONICYT
We examine the transmission coefficient of plane waves across two nonlinear delta-function barriers with positive opacity. It is shown that this simple system is capable of bistable behavior at sufficiently large input intensities. The bistable behav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2b2c10469e5431d7eb4e26ec94b9fc46
https://doi.org/10.1119/1.2785191
https://doi.org/10.1119/1.2785191
Autor:
C. A. Bustamante, M. I. Molina
Publikováno v:
International Journal of Modern Physics B. 17:2281-2298
We examine numerically the long-time average probability in a two-site system, for finding an electron staying at an initially occupied site for an asymmetric quantum Holstein electron-phonon coupled model. The principal finding is the existence of q
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4927409b644ec357e76a42873f0d3e9
https://doi.org/10.1142/s0217979203018144
https://doi.org/10.1142/s0217979203018144
Autor:
M. I. Molina, C. A. Bustamante
Publikováno v:
AMERICAN JOURNAL OF PHYSICS
Artículos CONICYT
CONICYT Chile
instacron:CONICYT
Artículos CONICYT
CONICYT Chile
instacron:CONICYT
We solve the continuous one-dimensional Schr\"{o}dinger equation for the case of an inverted {\em nonlinear} delta-function potential located at the origin, obtaining the bound state in closed form as a function of the nonlinear exponent. The bound s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3ccd87bd527dde00757fa1b78776e992
https://doi.org/10.1119/1.1417529
https://doi.org/10.1119/1.1417529
Autor:
M. I. Molina
Publikováno v:
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
Artículos CONICYT
CONICYT Chile
instacron:CONICYT
Artículos CONICYT
CONICYT Chile
instacron:CONICYT
We discuss the all-important issue of nonlinearity in the physical sciences, with emphasis on its importance in condensed matter physics, where nonlinearity provides a natural mechanism for selective trapping of excitations, such as electrons, at a m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5772bd63397742154e794652417e8ae9
https://doi.org/10.1142/s0217979201005660
https://doi.org/10.1142/s0217979201005660
Autor:
M. I. Molina
Publikováno v:
Physical Review B. 58:12547-12550
We study the propagation of electrons ~or excitations! through a one-dimensional tight-binding chain in the simultaneous presence of nonlinearity and diagonal disorder. The evolution of the system is given by a disordered version of the discrete nonl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3202ae27129a5926238c3b4243983b6c
https://doi.org/10.1103/physrevb.58.12547
https://doi.org/10.1103/physrevb.58.12547
Autor:
M. I. Molina
Publikováno v:
SPIE Proceedings.
We consider a simplified model for a nonlinear magnetic metamaterial, consisting of a split-ring resonator (SRR) array capable of nonlinear capacitive response. We compute the localized modes around simple magnetoinductive impurities located at the b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac54162f617083d6eae5eca72868a3e2
https://doi.org/10.1117/12.927775
https://doi.org/10.1117/12.927775
Autor:
M. I. Molina
Publikováno v:
Progress in Optical Science and Photonics ISBN: 9783642212062
We consider a simplified model of a nonlinear magnetic metamaterial, consisting of a weakly-coupled, periodic split-ring resonator (SRR) array capable of nonlinear capacitive response. We analyze three related problems: (a) The calculation of localiz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3fa998adc4c5c33e9d3c95efce48259d
https://doi.org/10.1007/10091_2012_15
https://doi.org/10.1007/10091_2012_15
Publikováno v:
Journal of Physics: Condensed Matter. 6:7741-7749
We study the transmission problem for electrons in an alternately linear-non-linear medium using a quasiperiodic Kronig-Penney model whose variance in spatial locations obeys the Fibonacci rules. We find that for waves with low intensity and long wav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c6114441f367b935fb6e3f48bb1fe1b
https://doi.org/10.1088/0953-8984/6/38/012
https://doi.org/10.1088/0953-8984/6/38/012