Controlling multiple skyrmions in nanowires is important for their implementation racetrack memory or neuromorphic computing. Here, we report on the dynamical behavior of two interacting confined devices with a comparison to single skyrmion case. Although shrink near edges and follow helical path, different. Because leading between edge trailing one, its size reduced further collapses at lower ...

High-quality factor dielectric microcavities like whispering-gallery-mode resonators can be widely applied in fields such as laser, optical sensor, switch, and filter. We propose the double-disk cavity comprising disks apart along face of disk. The electric field each disk with opposite phases was excited; emitted radiation annihilated by destructive interference. numerically achieved a 5.67-fo...

This paper reports the complex dynamics of a class two-dimensional maps containing hidden attractors via linear augmentation. Firstly, method augmentation for continuous dynamical systems is generalized to discrete systems. Then three cases that exhibit dynamics, with no fixed point and one stable point, are studied. Our numerical simulations show effectiveness method. As coupling strength cont...

pet (positron emission tomography) is a powerful imaging technique that can provide quantitative information on the distribution of positron emitter labeled radiopharmaceuticals (pet radiopharmaceuticals) in the body. positrons (ß+) are positively charged beta particles. they are emitted when the atom is proton rich. a positron has only a transient existence. after losing all of its kinetic ene...

Using the Zhu algebra for a certain category of $\mathbb{C}$-graded vertex algebras $V$, we prove that if $V$ is finitely $\Omega$-generated and satisfies suitable grading conditions, then rational, i.e. has semi-simple representation theory, with one dimensional level zero algebra. Here $\Omega$ denotes vectors in are annihilated by lowering real part grading. We apply our result to family ran...

We study polarons in the one-dimensional Bond-Peierls electron-phonon model which phonons on bonds of a lattice modulate hopping electrons between sites and contrast results to those known for breathing-mode Peierls problem. By inspecting atomic limit, we show that polaronic dressing mass enhancement depend momentum dependence phonons. For dispersionless phonons, are perfectly localized unlike ...

Magnetic skyrmions are appealing for applications in emerging topological spintronic devices. However, when magnetic a nanowire driven by an in-plane current, transverse Magnus force deflects their trajectories from the current direction, which tends to push skyrmion toward edge. If density is exceedingly large, will be annihilated around edge, leading greatly reduced propagation distance and m...

In stochastic complex systems, some sudden critical transitions (CTs) from one desirable state to another contrasting can take place because of noise, which may even lead catastrophic consequences. To keep a certain system in performance, methods that suppress these CTs the presence noise need be developed. this paper, ability an external linear augmentation method Gaussian white noise-induced ...