G
Georgios Theocharis
Researcher at Centre national de la recherche scientifique
Publications - 121
Citations - 4748
Georgios Theocharis is an academic researcher from Centre national de la recherche scientifique. The author has contributed to research in topics: Nonlinear system & Bose–Einstein condensate. The author has an hindex of 32, co-authored 107 publications receiving 3944 citations. Previous affiliations of Georgios Theocharis include National and Kapodistrian University of Athens & Heidelberg University.
Papers
More filters
Journal ArticleDOI
Bifurcation-based acoustic switching and rectification
TL;DR: A new mechanism for tunable rectification that uses bifurcations and chaos is demonstrated and envisage this mechanism to enable the design of advanced photonic, thermal and acoustic materials and devices.
Journal ArticleDOI
Experimental Observation of Oscillating and Interacting Matter Wave Dark Solitons
A. Weller,Jens Philipp Ronzheimer,Christian Gross,Jérôme Estève,Markus K. Oberthaler,Dimitri J. Frantzeskakis,Georgios Theocharis,Panayotis G. Kevrekidis +7 more
TL;DR: An effective particle picture is developed and confirms that the deviation of the observed oscillation frequencies from the asymptotic prediction nu(z)/sqrt 2, where nu( z) is the longitudinal trapping frequency, results from the dimensionality of the system and the soliton interactions.
Journal ArticleDOI
Discrete Breathers in One-Dimensional Diatomic Granular Crystals
Nicholas Boechler,Georgios Theocharis,Georgios Theocharis,Stéphane Job,Panayotis G. Kevrekidis,Mason A. Porter,Chiara Daraio +6 more
TL;DR: The experimental observation of modulational instability and discrete breathers in a one-dimensional diatomic granular crystal composed of compressed elastic beads that interact via Hertzian contact leads to the dynamical formation of long-lived breather structures.
Journal ArticleDOI
Feshbach resonance management for Bose-Einstein condensates.
TL;DR: An experimentally realizable scheme of periodic sign-changing modulation of the scattering length is proposed for Bose-Einstein condensates similar to dispersion-management schemes in fiber optics, named Feshbach-resonance management.
Journal ArticleDOI
Perfect and broadband acoustic absorption by critically coupled sub-wavelength resonators
Vicent Romero-García,Georgios Theocharis,Olivier Richoux,Aurélien Merkel,Vincent Tournat,Vincent Pagneux +5 more
TL;DR: The reported concepts and methodology provide guidelines for the design of broadband perfect absorbers which could contribute to solve the major issue of noise reduction.