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  1. No Access

    Article

    Prediction of self-similar waves in tapered graded index diffraction decreasing waveguide by the A-gPINN method

    In this paper, an adaptive gradient-enhanced physics-informed neural network method(A-gPINN) is proposed to investigate the dynamics of solitons in tapered refractive index waveguides. A-gPINN method adopts ad...

    Lang Li, Weixin Qiu, Chaoqing Dai, Yueyue Wang in Nonlinear Dynamics (2024)

  2. No Access

    Article

    Higher-dimensional soliton structures of a variable-coefficient Gross–Pitaevskii equation with the partially nonlocal nonlinearity under a harmonic potential

    A reduction correlation between the \((3+1)\) ( 3 ...

    **g Yang, Yu Zhu, Wei Qin, Shaohui Wang, Chaoqing Dai, Jitao Li in Nonlinear Dynamics (2022)

  3. Article

    Open Access

    Ultrafast photonics of two dimensional AuTe2Se4/3 in fiber lasers

    The exploration of promising nonlinear optical materials, which allows for the construction of high-performance optical devices in fundamental and industrial applications, has become one of the fastest-evolvin...

    Wenjun Liu, Mengli Liu, Xu Chen, Tao Shen, Ming Lei, Jiangang Guo… in Communications Physics (2020)

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  4. No Access

    Article

    Effects on lipid bilayer and nitrogen distribution induced by lateral pressure

    The lateral pressure exerted on cell membrane is of great importance to signal transduction. Here, we perform molecular dynamics simulation to explore how lateral pressure affects the biophysical properties of...

    Yu Wang, Liang Chen, **aogang Wang, Chaoqing Dai… in Journal of Molecular Modeling (2015)

  5. No Access

    Article

    Angular momentum density of a Gaussian vortex beam

    The Gaussian vortex beam is assumed to be linearly polarized. The analytical expression of the electric field of a linearly polarized Gaussian vortex beam propagating in free space is derived by using the vect...

    GuoQuan Zhou, **aoGang Wang, ChaoQing Dai… in Science China Physics, Mechanics and Astro… (2014)

  6. No Access

    Article

    Hollow vortex Gaussian beams

    A kind of hollow vortex Gaussian beam is introduced. Based on the Collins integral, an analytical propagation formula of a hollow vortex Gaussian beam through a paraxial ABCD optical system is derived. Due to ...

    GuoQuan Zhou, YangJian Cai, ChaoQing Dai in Science China Physics, Mechanics and Astronomy (2013)

  7. No Access

    Article

    Soliton Fusion and Fission Phenomena in the (2+1)-Dimensional Variable Coefficient Broer-Kaup System

    In this paper, the general projective Riccati equation method is applied to derive variable separation solutions of the (2+1)-dimensional variable coefficient Broer-Kaup system. By further studying, we find t...

    Chaoqing Dai, Dingguo Yu in International Journal of Theoretical Physics (2008)

  8. No Access

    Article

    The Application of Extended Tanh-Function Approach in Toda Lattice Equations

    In this paper, we generalize the extended tanh-function approach, which used to find new exact travelling wave solutions of nonlinear partial differential equations (NPDES) or coupled nonlinear partial differe...

    Chaoqing Dai, Yongzhou Ni in International Journal of Theoretical Physics (2007)