Year: 2024
Type: article
Abstract: We study the propagation of a domain wall (kink) of the ${\ensuremath{\phi}}^{4}$ model in a radially symmetric environment defined by a gravity source. This source introduces a Schwarzschild-like geometry. We introduce an effective model that accurately describes the dynamics of the kink center. This description works well even outside the perturbation region, i.e., even for large masses of the gravitating object. We observed that such a spherical domain wall surrounding a star-type object inevitably ``collapses,'' i.e., shrinks in radius toward the origin and offer an understanding of the latter phenomenology. The relevant analysis is presented for a circular domain wall and a spherical one.
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Awards: G1239236215, G4735079215, Collaborative Research: From Quantum Droplets & Spinor Solitons to Vortex Knots & Topological States: Beyond the Standard Mean-Field in Atomic BECs, Collaborative Research: Collapse, Rogue Waves, and their Applications: From Theory to Computation and Beyond, G8490695295
OpenAlex ID: W4405800751