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Dynamic entanglement for continuous variables in an electric field background
《Communications in Theoretical Physics》2023年第6期66-77,共12页Shu-Min Wu Jin-Xuan Li Xiao-Wei Fan Wen-Mei Li Xiao-Li Huang Hao-Sheng Zeng 
supported by the National Natural Science Foundation of China(Grant Nos.12205133,LJKQZ20222315 and 2021BSL013)
Quantum entanglement is a typical nonclassical correlation.Here,we use this concept to analyze quantum entanglement for continuous variables generated by the Schwinger pair production for constant and pulsed electric ...
关键词：Schwinger effect continuous variable quantum entanglement 
Localized Properties of Rogue Wave for a Higher-Order Nonlinear Schr?dinger Equation被引量：2
《Communications in Theoretical Physics》2015年第5期525-534,共10页柳伟 邱德勤 贺劲松 
Supported by the National Natural Science Foundation of China under Grant No.11271210;the K.C.Wong Magna Fund in Ningbo University
In this paper, we provide determinant representation of the n-th order rogue wave solutions for a higherorder nonlinear Schr6dinger equation （HONLS） by the Darboux transformation and confirm the decomposition rule o...
关键词：rogue wave higher-order nonlinear Schr6dinger equation Darboux transformation 
Spatial Solitons in 2D Graded-Index Waveguides with Different Distributed Transverse Diffractions
《Communications in Theoretical Physics》2014年第2期214-220,共7页陈翼翔 
Supported by the Higher School Visiting Scholar Development Project under Grant No.FX2013103;the Research Fund under Grant No.ZCI2XJY003; Research Fund for the Doctoral Program under Grant No.Z301B13519 of the Zhejiang University of Media and Communications;Zhejiang Province Science Foundation for Youths under Grant No.LQ12F05005;National Natural Science Foundation of China under Grant No.11374254
We discuss the nonlinear Schr6dinger equation with variable coefficients in 21） graded-index waveguides with different distributed transverse diffractions and obtain exact bright and dark soliton solutions. Based on ...
关键词：nonlinear Schr6dinger equation bright solitons dark solitons diffraction decreasing waveguides 
Analytic Results in the Position-Dependent Mass Schrdinger Problem
《Communications in Theoretical Physics》2013年第12期642-650,共9页M.S.Cunha H.R.Christiansen 
We investigate the Schr6dinger equation for a particle with a nonuniform solitonic mass density. First, we discuss in extent the （nontrivial） position-dependent mass V（x） = 0 case whose solutions are hypergeometri...
关键词：Schr6dinger equation position-dependent mass Heun equation 
Generalized Harmonic Oscillator and the Schrdinger Equation with Position-Dependent Mass
《Communications in Theoretical Physics》2009年第5期797-802,共6页JU Guo-Xing CAI Chang-Ying REN Zhong-Zhou 
supported by the National Natural Science Foundation of China under Grant Nos.10125521 and 60371013;the 973 National Basic Pesearch and Development Program of China under Contract No.G2000077400
We study the generalized harmonic oscillator that has both the position-dependent mass and the potential depending on the form of mass function in a more general framework. The explicit expressions of the eigenvalue a...
关键词：generalized harmonic oscillator Schr6dinger equation position-dependent mass coherent state 
Applications of Extended Hyperbolic Function Method for Quintic Discrete Nonlinear SchrSdinger Equation
《Communications in Theoretical Physics》2007年第3期474-478,共5页ZHAO Hong HAN Ji-Guang WANG Wei-Tao AN Hong-Yong 
The project supported by National Natural Science Foundation of China, the Natural Science Foundation of Shandong Province of China, and the Natural Scienoe Foundation of Liaocheng University
By using the extended hyperbolic function method, we have studied a quintic discrete nonlinear Schrodinger equation and obtained new exact localized solutions, including the discrete bright soliton solution, dark soli...
关键词：extended hyperbolic function method quintic discrete nonlinear Schr6dinger equation discretesolitons alternating phase 
“Eigen-Operator” Method of the Square of Schroedinger Operator in Interaction Picture and Its Application in Describing Parametric Amplifiers
《Communications in Theoretical Physics》2005年第2X期252-254,共3页FAN Hong-Yi FAN Yue 
The project supported by National Natural Science Foundation of China and the Doctoral Tutoring Foundation of the Ministry of Education of Chin
We extend the method of searching “eigen-operator” of the square of the Schroedinger operator to the interaction picture, which not only helps to construct Hamiltonians of two kinds of parametric amplifiers but also...
关键词：eigen-operator Schroedinger operator interaction picture parametric amplifier 
Determining Energy Eigenvalues of Dynamic Systems by Finding ＇Eigen-operator＇ ofSquare of Schroedinger Operator
《Communications in Theoretical Physics》2004年第6X期824-826,共3页FANHong-Yi XUXue-Fen LIChao 
A newly transparent approach for determining energy eigenvalues is proposed, which is finding the ‘eigen-operator' of the square of the Schroedinger operator. As three examples, we discuss the energy level of a nonde...
关键词：施荣丁格尔算子 海森伯格运动方程 能量间隔 量子力学 偏微分方程 
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