We propose a simple, novel mechanism for inducing highly selective and efficient energy transfer focusing in certain discrete nonlinear systems. Under precise condition of resonance, when specific amount is injected as breather at donor system, it can be transferred to another weakly coupled acceptor system. This general could relevant bioenergetics electron chemical reactions used engineering functional materials devices.

We introduce a systematic approach to investigate movability properties of localized excitations in discrete nonlinear lattice systems and apply it ${\ensuremath{\varphi}}^{4}$ lattices. Starting from the anticontinuous limit, we construct breather solutions that are shown be linearly stable possess pinning mode double well case. demonstrate an appropriate perturbation yields method for constructing moving breathers with minimum shape alteration. find mobility improves lower frequency....

We study relaxation properties of one dimensional nonlinear lattices which are initially thermalized and subsequently put intp contact with a cold bath simulated by absorbing boundary conditions. observe nonexponential lattice energy in contrast to the standard exponential law corresponding linear system. connect long-tail behavior presence long-lived localized modes. The mobility breathers is shown play substantial role properties.

Regular lattices comprising superconducting quantum interference devices (SQUIDs) form magnetic metamaterials exhibiting extraordinary properties, including tunability, dynamic multistability, and negative permeability. The SQUIDs in a metamaterial interact through nonlocal, dipole-dipole forces that makes it possible for counterintuitive states referred to as chimera appear; the latter feature clusters of with synchronous dynamics which coexist asynchronous behavior. spontaneous appearance...

We report on the emergence of robust multi-clustered chimera states in a dissipative-driven system symmetrically and locally coupled identical SQUID oscillators. The "snake-like" resonance curve single (Superconducting QUantum Interference Device) is key to formation responsible for extreme multistability exhibited by that leads attractor crowding at geometrical (inductive-capacitive) frequency. Until now, were mostly believed exist nonlocal coupling. Our findings provide theoretical...

An rf superconducting quantum interference device (SQUID) array in an alternating magnetic field is investigated with respect to its effective permeability, within the medium approximation. This system acts as inherently nonlinear metamaterial, leading negative response, and thus above resonance frequency of individual SQUIDs. Moreover, permeability exhibits oscillatory behavior at low intensities, allowing tuning by a slight change intensity applied field.

Semiconductor laser arrays have been investigated experimentally and theoretically from the viewpoint of temporal spatial coherence for past forty years. In this work, we are focusing on a rather novel complex collective behavior, namely chimera states, where synchronized clusters emitters coexist with unsynchronized ones. For first time, find such states exist in large diode based quantum well gain media nearest-neighbor interactions. The crucial parameters evanescent coupling strength...