Inflation in inhomogeneous cosmology

Esteban Calzetta and Maria Sakellariadou
Phys. Rev. D 45, 2802 – Published 15 April 1992
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Abstract

We discuss the onset of inflation in an inhomogeneous, asymptotically Friedmann-Robertson-Walker universe coupled to a scalar inflaton field. We consider a three-parameter family of inhomogeneous Cauchy data, for which we can solve analytically the constraint equations. Inflation only occurs if the Cauchy data are homogeneous over several horizon lengths.

  • Received 8 July 1991

DOI:https://doi.org/10.1103/PhysRevD.45.2802

©1992 American Physical Society

Authors & Affiliations

Esteban Calzetta

  • Instituto de Astronomía y Física del Espacio, Casilla de Correo 67-Sucursal 28, 1428 Buenos Aires, Argentina and Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina

Maria Sakellariadou

  • Research Group in General Relativity, Faculté des Sciences, Campus Plaine CP231, Université Libre de Bruxelles, Boulevard du Triomphe, 1050 Bruxelles, Belgium

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Vol. 45, Iss. 8 — 15 April 1992

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