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Phys. Rev. D 59, 063505 (1999) [6 pages]

Quintessential inflation

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P. J. E. Peebles
Joseph Henry Laboratories, Princeton University, Princeton, New Jersey 08544
Institute for Advanced Study, Princeton, New Jersey 08544

A. Vilenkin
Department of Physics, Tufts University, Medford, Massachusetts 02155

Received 2 November 1998; published 12 February 1999

We present an explicit observationally acceptable model for evolution from inflation to the present epoch under the assumption that the entropy and matter of the familiar universe are from gravitational particle production at the end of inflation. This eliminates the problem of finding a satisfactory coupling of the inflaton and matter fields. Since the inflaton potential V(φ) may be a monotonic function of the inflaton φ, the inflaton energy could produce an observationally significant effective cosmological constant, as in quintessence.

© 1999 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.59.063505
DOI:
10.1103/PhysRevD.59.063505
PACS:
98.80.Cq