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PERTURBATION: 作品数：943被引量：1252H指数：13; 导出分析报告; 相关领域：理学更多>>; 相关作者：杨超吴志刚张志森王琦陈尔余更多>>; 相关机构：福建师范大学北京理工大学北京航空航天大学浙江大学更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划中国博士后科学基金国家教育部博士点基金更多>>

Time evolutions of scalar field perturbation in Schwarzschild de-Sitter black hole from Einstein-scalar–Gauss–Bonnet theory: 《Communications in Theoretical Physics》2024年第1期76-81,共6页Cheng Xu Zhen-Hao Yang Xiao-Mei Kuang Rui-Hong Yue; partly supported by Natural Science Foundation of China under Grant No.12375054;the Natural Science Foundation of Jiangsu Province under Grant No.BK20211601。; The scalar-free black hole could be unstable against the scalar field perturbation when it is coupled to a Gauss–Bonnet(GB)invariant in a special form.It is known that the tachyonic instability in this scenario is tr...; 关键词：black hole perturbation scalar-Einstein-Gauss-Bonnet gravity time domain evolution me

The instability analysis of self-gravitation systems under the perturbation with orbital angular momentum: 《Communications in Theoretical Physics》2023年第4期101-105,共5页杨巧云谭玲陈辉刘三秋; supported by the National Natural Science Foundation of China (Grant Nos.11763006 and 11863004);the fund from the Jiangxi Provincial Key Laboratory of Fusion and Information Control (Grant No.20171BCD40005);the Project of Scientific and Technological Innovation Base of Jiangxi Province (Grant No.20203CCD46008)。; Based on plasma kinetic theory, the instabilities of self-gravitation systems under perturbation with orbital angular momentum(OAM) are investigated, and the concept of twisted Jeans mode is introduced to describe the...; 关键词：self-gravitating systems Jeans instability orbital angular momentum

Rayleigh-Taylor instability under multimode perturbation:Discrete Boltzmann modeling with tracers: 《Communications in Theoretical Physics》2022年第11期180-198,共19页Hanwei Li Aiguo Xu Ge Zhang Yiming Shan; supported by the National Natural Science Foundation of China(under Grant No.12172061);the Opening Project of State Key Laboratory of Explosion Science and Technology(Beijing Institute of Technology)under Grant No.KFJJ21-16 M;Foundation of Laboratory of Computational Physics。; The two-dimensional Rayleigh-Taylor Instability(RTI)under multi-mode perturbation in compressible flow is probed via the Discrete Boltzmann Modeling(DBM)with tracers.The distribution of tracers provides clear boundari...; 关键词：Rayleigh-Taylor instability multi-mode perturbation Discrete Boltzmann modeling tracers non-equilibrium effects kinetic modeling

Perturbation,symmetry analysis,Bäcklund and reciprocal transformation for the extended Boussinesq equation in fluid mechanics: 《Communications in Theoretical Physics》2021年第4期21-28,共8页Gangwei Wang Abdul-Majid Wazwaz; supported by Natural Science Foundation of Hebei Province,China(Grant No.A2018207030);Youth Key Program of Hebei University of Economics and Business(2018QZ07);Key Program of Hebei University of Economics and Business(2020ZD11);Youth Team Support Program of Hebei University of Economics and Business;National Natural Science Foundation of China(Grant No.11801133)。; In this work,we study a generalized double dispersion Boussinesq equation that plays a significant role in fluid mechanics,scientific fields,and ocean engineering.This equation will be reduced to the Korteweg-de Vries...; 关键词：Boussinesq equation perturbation and symmetry analysis Bäcklund transformation conservation laws

Sensitivity of energy eigenstates to perturbation in quantum integrable and chaotic systems: 《Communications in Theoretical Physics》2021年第1期40-44,共5页Zao Xu Yin-Chenguang Lyu Jiaozi Wang Wen-Ge Wang; This paper was supported by the National Natural Science Foundation of China under Grant Nos.11535011 and 11775210.; We study the sensitivity of energy eigenstates to small perturbation in quantum integrable and chaotic systems.It is shown that the distribution of rescaled components of perturbed states in unperturbed basis exhibits...; 关键词：quantum chaos sensitivity to perturbation energy eigenstates STATISTICS

Study on the Perturbation Characteristics of Two-Channel Laser Propagation in Atmospheric Turbulence被引量：2: 《Communications in Theoretical Physics》2019年第6期731-735,共5页Xiao-Dong Yang Ming Gao; In order to study the influence factors of acquisition detection target information by lidar and understand the influence degree of each factor, the two-channel phase perturbation model and the two-channel eikonal var...; 关键词：atmospheric TURBULENCE two-channel phase PERTURBATION EIKONAL variance

Implication of GW170817 for Cosmological Bounces: 《Communications in Theoretical Physics》2019年第4期427-434,共8页Gen Ye Yun-Song Piao; Supported by National Natural Science Foundation of China under Grant Nos.11575188 and 11690021; The detection of GW170817 and its electromagnetic counterpart has revealed the speed of gravitational waves coincides with the speed of light, cT= 1. Inspired by the possibility that the physics implied by GW170817 mi...; 关键词：cosmological bounce PERTURBATION effective field theory SINGULARITY

Dipole Polarizabilities of the Ground States for Berylliumlike Ions: 《Communications in Theoretical Physics》2018年第12期765-770,共6页Chao Chen Bing-Cong Gou; Supported by National Natural Science Foundation of China under Grant No.11474020; Dipole polarizabilities of the ground states for berylliumlike ions with nuclear charge Z = 4 to 10 are calculated by using the Rayleigh-Ritz variational method with multiconfiguration interaction wave functions. The ...; 关键词：DIPOLE POLARIZABILITY berylliumlike IONS variation-perturbation METHOD

Dirac Quasinormal Modes of Static f(R) de Sitter Black Holes: 《Communications in Theoretical Physics》2018年第2期179-187,共9页Hong Ma; Supported by FAPESP No.2012/08934-0;National Natural Science Foundation of China under Grant Nos.11205254,11178018,11375279,11605015;the Natural Science Foundation Project of CQ CSTC 2011BB0052;the Fundamental Research Funds for the Central Universities 106112016CDJXY300002 and CDJRC10300003; Quasinormal modes （QNMs） for Dirac perturbations off（R） black holes （BHs） are described in this paper, involving two types of f（R） solution： f（R）（Sehwarzschild） BHs and f（R）（Maxwell） BHs. With the f...; 关键词：Dirae perturbation f（R） black holes quasinormal modes （QNMs）

Nonlinear Dust Acoustic Waves in Dissipative Space Dusty Plasmas with Superthermal Electrons and Nonextensive Ions被引量：1: 《Communications in Theoretical Physics》2016年第5期606-612,共7页A.M.El-Hanbaly E.K.El-Shewy M.Sallah H.F.Darweesh; The nonlinear characteristics of the dust acoustic(DA)waves are studied in a homogeneous,collisionless,unmagnetized,and dissipative dusty plasma composed of negatively charged dusty grains,superthermal electrons,and n...; 关键词：Sagdeev pseudopotential KdV-Burgers equation soliton and shock waves reductive perturbation dust kinematic viscosity

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