The Cosmological Model with a Wormhole and Hawking Temperature near Apparent Horizon
arXiv:1801.07989 · doi:10.1016/j.physletb.2018.03.005
Abstract
In this paper, a cosmological model with an isotropic form of the Morris-Thorne type wormhole was derived in a similar way to the McVittie solution to the black hole in the expanding universe. By solving Einstein's field equation with plausible matter distribution, we found the exact solution of the wormhole embedded in Friedmann-Lema\^ıtre-Robertson-Walker universe. We also found the apparent cosmological horizons from the redefined metric and analyzed the geometric natures, including causal and dynamic structures. The Hawking temperature for thermal radiation was obtained by the WKB approximation using the Hamilton-Jacobi equation and Hamilton's equation, near the apparent cosmological horizon.
16 pages, 3 figures
References in corpus (6)
- Hawking Radiation of Apparent Horizon in a FRW Universe
- Cosmological expansion and local physics
- Non-exotic matter wormholes in a trace of the energy-momentum tensor squared gravity
- Wormhole dynamics in spherical symmetry
- The charged McVittie spacetime
- Lorentzian Wormholes in the Friedman-Robertson-Walker Universe