The diametric drive self-acceleration of beams with positive and negative mass in nonlocal nonlinear media

IF 2.3 3区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

Physics Letters A Pub Date : 2025-07-03 DOI:10.1016/j.physleta.2025.130789

Shuxia Mo, Wei Hu, Daquan Lu

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引用次数: 0

Abstract

The diametric driven self-acceleration is manifested by two beams with positive and negative mass accelerating in the same direction. It is found that exists in nonlocal nonlinear media in the paper. Using the analogy between the band structure of photonic lattice and the dispersion relationship of homogeneous media, the asymptotic behavior of the refractive index and the Ehrenfest theorem, the acceleration expressions and the trajectory equations of two beams are obtained. The results from the trajectory equations are in excellent agreement with the results from the numerical simulation when the condition

| β_{A}^{″} | / K_{A} E_{A} = | β_{B}^{″} | / K_{B} E_{B}

is satisfied.

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非局部非线性介质中正负质量梁的直径驱动自加速度

直径驱动的自加速表现为两个正负质量的光束在同一方向上加速。本文发现，在非局部非线性介质中存在这种现象。利用光子晶格的能带结构与均匀介质色散关系的类比，推导了折射率的渐近特性，利用Ehrenfest定理，得到了两束光的加速度表达式和轨迹方程。当满足条件|βA″|/KAEA=|βB″|/KBEB时，弹道方程计算结果与数值模拟结果吻合良好。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Physics Letters A 物理-物理：综合

CiteScore

5.10

自引率

3.80%

发文量

493

审稿时长

30 days

期刊介绍： Physics Letters A offers an exciting publication outlet for novel and frontier physics. It encourages the submission of new research on: condensed matter physics, theoretical physics, nonlinear science, statistical physics, mathematical and computational physics, general and cross-disciplinary physics (including foundations), atomic, molecular and cluster physics, plasma and fluid physics, optical physics, biological physics and nanoscience. No articles on High Energy and Nuclear Physics are published in Physics Letters A. The journal''s high standard and wide dissemination ensures a broad readership amongst the physics community. Rapid publication times and flexible length restrictions give Physics Letters A the edge over other journals in the field.