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New Aspects of Reheating

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String Gravity and Physics at the Planck Energy Scale

Part of the book series: Mathematical and Physical Sciences ((ASIC,volume 476))

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Abstract

The reheating stage in post-inflationary cosmologies is reanalyzed. New techniques from non-equilibrium quantum field theory allow a consistent derivation of the equation of motion including the non-linearity of the dynamics. These offer a rationale for the elementary theory of reheating based on single particle decay which is seen to be valid only in the linear regime of coherent oscillations of the scalar field.

A new non-perturbative mechanism of induced amplification of quantum fluctuations is introduced and studied in detail, both analytically and numerically. This is a non-linear mechanism that is typically a far more efficient way of transfering energy out of the zero mode and into production of lighter particles than single particle decay. Thermalization is discussed and we estimate the reheating temperature to be of the order of the infiaton mass, thus providing a potential solution to the Polonvi and moduli problems.

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Author information

Authors and Affiliations

  1. Department of Physics and Astronomy, University of Pittsburgh, 15260, Pittsburgh, PA, USA

    D. Boyanovsky

  2. Laboratoire de Physique Théorique et Hautes Energies, Université Pierre et Marie Curie (Paris VI), Tour 16, 1er. étage, 4, Place Jussieu, 75252, Paris cedex 05, France

    M. D’Attanasio & H. J. de Vega

  3. Department of Physics, Carnegie Mellon University, 15213, Pittsburgh, PA, USA

    R. Holman

  4. I.N.F.N., Gruppo Collegato di Parma, Italy

    M. D’Attanasio

  5. Department of Physics and Astronomy, University of North Carolina, 27599, Chapel Hill, NC, USA

    D.-S. Lee

Authors
  1. D. Boyanovsky
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  2. M. D’Attanasio
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  3. H. J. de Vega
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  4. R. Holman
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  5. D.-S. Lee
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Editor information

Editors and Affiliations

  1. Observatoire de Paris, Demirm, Paris, France

    N. Sánchez

  2. CERN, Geneva, Switzerland

    A. Zichichi

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© 1966 Kluwer Academic Publishers

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Boyanovsky, D., D’Attanasio, M., de Vega, H.J., Holman, R., Lee, DS. (1966). New Aspects of Reheating. In: Sánchez, N., Zichichi, A. (eds) String Gravity and Physics at the Planck Energy Scale. Mathematical and Physical Sciences, vol 476. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-0237-4_20

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  • DOI: https://doi.org/10.1007/978-94-009-0237-4_20

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-6589-4

  • Online ISBN: 978-94-009-0237-4

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