Stochastic inflationary scalar electrodynamics

Journal Article · Sun Jun 15 00:00:00 EDT 2008 · Annals of Physics (New York)

DOI:https://doi.org/10.1016/j.aop.2007.08.008· OSTI ID:21163699

Prokopec, T. ^[1]; Tsamis, N.C. ^[2]; Woodard, R.P. ^[3]

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1. Institute for Theoretical Physics and Spinoza Institute, Utrecht University Leuvenlaan 4, Postbus 80.195, 3508 TD Utrecht (Netherlands), E-mail: [e-mail]
2. Department of Physics, University of Crete, GR-710 03 Heraklion (Greece), E-mail: [e-mail]
3. Department of Physics, University of Florida Gainesville, FL 32611 (United States), E-mail: [e-mail]

We stochastically formulate the theory of scalar quantum electrodynamics on a de Sitter background. This reproduces the leading infrared logarithms at each loop order. It also allows one to sum the series of leading infrared logarithms to obtain explicit, nonperturbative results about the late time behavior of the system. One consequence is confirmation of the conjecture by Davis, Dimopoulos, Prokopec and Toernkvist that super-horizon photons acquire mass during inflation. We compute M{sub {gamma}}{sup 2}{approx_equal}3.2991xH{sup 2}. The scalar stays perturbatively light with M{sub {phi}}{sup 2}{approx_equal}0.8961x3e{sup 2}H{sup 2}/8{pi}{sup 2}. Interestingly, the induced change in the cosmological constant is negative, {delta}{lambda} {approx_equal} -0.6551 x 3GH{sup 4}/{pi}.

• OSTI ID: 21163699
• Journal Information: Annals of Physics (New York), Vol. 323, Issue 6; Other Information: DOI: 10.1016/j.aop.2007.08.008; PII: S0003-4916(07)00121-2; Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-4916
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMOLOGICAL CONSTANT
COSMOLOGY
DE SITTER GROUP
DE SITTER SPACE
INFLATIONARY UNIVERSE
MASS
PHOTONS
QUANTUM ELECTRODYNAMICS
SCALARS
STOCHASTIC PROCESSES