Abstract:
It is shown that the equations of motion and Tolman's formula require reverse flow of time on a spherical domain wall. Moreover, the active gravitational mass of the wall becomes negative. The critical mass and radius of a bubble are found for realistic models.
This publication is cited in the following 2 articles:
Ø. Grøn, S. Johannesen, “A solution of the Einstein-Maxwell equations describing conformally flat spacetime outside a charged domain wall”, Eur. Phys. J. Plus, 126:9 (2011)
A. Barnaveli, M. Gogberashvili, “Antigraviting bubbles with non-Minkowskian asymptotic”, Theoret. and Math. Phys., 113:2 (1997), 1491–1496