Dark energy simulacrum in nonlinear electrodynamics

Journal Article · Mon Mar 15 00:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.81.065026· OSTI ID:21409432

Labun, Lance; Rafelski, Johann ^[1]

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1. Department of Physics, University of Arizona, Tucson, Arizona, 85721 (Unites States) and Ludwig-Maximillians-Universitaet Muenchen, 85748 Garching (Germany)

Quasiconstant external fields in nonlinear electromagnetism generate a global contribution proportional to g{sup {mu}{nu}}in the energy-momentum tensor, thus a simulacrum of dark energy. To provide a thorough understanding of the origin and strength of its effects, we undertake a complete theoretical and numerical study of the energy-momentum tensor T{sup {mu}{nu}}for nonlinear electromagnetism. The Euler-Heisenberg nonlinearity due to quantum fluctuations of spinor and scalar matter fields is considered and contrasted with the properties of classical nonlinear Born-Infeld electromagnetism. We address modifications of charged particle kinematics by strong background fields.

• OSTI ID: 21409432
• Journal Information: Physical Review. D, Particles Fields, Vol. 81, Issue 6; Other Information: DOI: 10.1103/PhysRevD.81.065026; (c) 2010 The American Physical Society; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BORN-INFELD THEORY
CHARGED PARTICLES
ELECTRODYNAMICS
ELECTROMAGNETISM
ENERGY-MOMENTUM TENSOR
FLUCTUATIONS
MODIFICATIONS
NONLINEAR PROBLEMS
NONLUMINOUS MATTER
NUMERICAL ANALYSIS
MAGNETISM
MATHEMATICS
MATTER
TENSORS
VARIATIONS