%0 Journal Article
%T Exploring Gravitational Soliton
%A Bi Qiao
%J Journal of Modern Physics
%P 594-612
%@ 2153-120X
%D 2025
%I Scientific Research Publishing
%R 10.4236/jmp.2025.164032
%X This paper constructs a four-dimensional gravitational soliton solution that strictly satisfies Einstein’s vacuum field equations, revealing the intrinsic connection between strong-field nonlinear gravity and weak-field linear theory, and proposes a nonlinear unified mechanism for electromagnetic-gravitational interaction. Based on light-cone coordinates and transverse plane polarization structures, a metric form with a
type envelope is developed, and its waveform stability is shown to arise from the dynamic balance between nonlinear self-interaction terms and spacetime dispersion effects. The study demonstrates that in the weak-field limit, the soliton degenerates into linear gravitational waves, whose polarization mode
strictly corresponds to a spin-2, zero-mass graviton, indicating that gravitons are essentially low-energy approximations of nonlinear fields. Further, through the generalized gauge transformation theory, it is shown that two electromagnetic optical solitons in the strong-field region can nonlinearly couple into a gravitational soliton. This process degenerates in the weak-field limit to photon-graviton conversion, supporting the gauge symmetry unification of electromagnetic and gravitational interactions. Additionally, it is predicted that the characteristic waveform of the soliton (such as the
envelope and the absence of high-frequency cutoff spectra) may generate signals in high-energy astrophysical events that differ from linear gravitational waves, providing a new target for future gravitational wave detection. This work establishes for the first time a strict generalized gauge transformation relationship between solitons, gravitons, optical solitons, and polarized photons, offering an exploratory paradigm for the unified theory of strong-field gravity and electromagnetism.
%K Gravitational Soliton
%K Einstein Equation
%K Gauge Transformation
%K Graviton
%K Dual Photon
%K Nonlinear Effects
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=142220