Integration of inhomogeneous cosmological spacetimes in the BSSN formalismPhysical Review D
AbstractWe present cosmological-scale numerical simulations of an evolving universe in full general relativity and introduce a new numerical tool, cosmograph, which employs the Baumgarte-Shapiro-Shibata-Nakamura formalism on a three-dimensional grid. Using cosmograph, we calculate the effect of an inhomogeneous matter distribution on the evolution of a spacetime. We also present the results of a set of standard stability tests to demonstrate the robustness of our simulations.
Citation InformationJohn T. Giblin, James B. Mertens and Glenn D. Starkman. "Integration of inhomogeneous cosmological spacetimes in the BSSN formalism" Physical Review D Vol. 93 (2016)
Available at: http://works.bepress.com/tom_giblin/1/