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APS » Journals » Phys. Rev. D » Volume 45 » Issue 8
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Phys. Rev. D 45, 2802–2805 (1992)

Inflation in inhomogeneous cosmology

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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

Received 8 July 1991; published in the issue dated 15 April 1992

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.

© 1992 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.45.2802
DOI:
10.1103/PhysRevD.45.2802
PACS:
98.80.Cq, 98.80.Dr
 
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