WebOct 12, 2024 · We construct three efficient and accurate numerical methods for solving the Klein–Gordon–Schrödinger (KGS) equations with/without damping terms. The first one is based on the original SAV approach, it preserves a modified Hamiltonian but does not preserve the wave energy. WebAug 29, 2024 · The numerical solution of coupled nonlinear Klein-Gordon equations on …
Solitary waves for nonlinear Klein–Gordon–Maxwell and …
WebNov 25, 2024 · The Einstein-Klein-Gordon coupled system: global stability of the Minkowski solution. We prove definitive results on the global stability of the flat space among solutions of the Einstein-Klein-Gordon system. Our main theorems in this monograph include: (1) A proof of global regularity (in wave coordinates) of solutions of the Einstein … WebJul 31, 2024 · Abstract We establish a uniform error estimate of a finite difference method for the Klein-Gordon-Schrödinger (KGS) equations with two dimensionless parameters 0 < γ ≤ 1 and 0 < ε ≤ 1, which are the mass ratio and inversely proportional to the … night time real estate photography
Soliton solutions of coupled nonlinear Klein-Gordon equations
WebThis paper considers methods to extract exact, explicit, and new single soliton solutions related to the nonlinear Klein-Gordon-Schrödinger model that is utilized in the study of neutral scalar mesons associated with conserved scalar nucleons coupled through the Yukawa interaction. Three state of the art integration schemes, namely, the e−Φ(ξ) … WebA. 14 The Klein-Gordon equation. The Schrödinger equation for the quantum wave … WebMar 19, 2024 · We discuss the mechanism of spontaneous symmetry breaking and the elementary excitations for a weakly-interacting Bose gas at finite temperature. We consider both the non-relativistic case, described by the Gross-Pitaevskii equation, and the relativistic one, described by the cubic nonlinear Klein-Gordon equation. We analyze similarities … nsgz winnermedical.com