Inflation in inhomogeneous cosmology

Journal Article · Wed Apr 15 04:00:00 EDT 1992 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.45.2802· OSTI ID:7044513

Calzetta, E ^[1]; Sakellariadou, M ^[2]

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1. Instituto de Astronomia y Fisica del Espacio, Casilla de Correo 67-Sucursal 28, 1428 Buenos Aires (Argentina) Departamento de Fisica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires (Argentina)
2. Research Group in General Relativity, Faculte des Sciences, Campus Plaine CP231, Universite Libre de Bruxelles, Boulevard du Triomphe, 1050 Bruxelles (Belgium)

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.

• OSTI ID: 7044513
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 45:8; ISSN PRVDA; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662110* -- General Theory of Particles & Fields-- Theory of Fields & Strings-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COSMOLOGICAL MODELS
COSMOLOGY
COUPLING
EINSTEIN FIELD EQUATIONS
ENERGY-MOMENTUM TENSOR
EQUATIONS
FIELD EQUATIONS
GRAVITATIONAL FIELDS
INFLATIONARY UNIVERSE
MATHEMATICAL MODELS
METRICS
PARTICLE MODELS
PERTURBATION THEORY
SCALAR FIELDS
STANDARD MODEL
TENSORS
UNIFIED GAUGE MODELS
UNIVERSE