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Phys. Rev. D 40, 3263–3279 (1989)

Spherical inhomogeneous cosmologies and inflation: Numerical methods

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Dalia S. Goldwirth* and Tsvi Piran
Racah Institute for Physics, The Hebrew University, Jerusalem 91904, Israel

Received 1 May 1989; revised 29 June 1989; published in the issue dated 15 November 1989

We describe a spherically symmetric code for inhomogeneous cosmological problems. Our main goal is to study the onset of inflation under inhomogeneous conditions. We would like to explore the influence of inhomogeneity on inflation. In particular we address the question of whether large inhomogeneity during the very early Universe can prevent the Universe from entering an inflationary era. In this paper we describe the equations, the numerical techniques, tests, and some preliminary results. A detailed discussion of the results will follow in a subsequent paper.

© 1989 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.40.3263
DOI:
10.1103/PhysRevD.40.3263
PACS:

*Electronic address: Dalia@hujivms.BITNET.

Electronic address: Tsvi@hujivms.BITNET