The symmetries of inflationary magnetogenesis and the plasma initial conditions

Abstract

As soon as the geometry expands quasi-exponentially the plasma sources are customarily tuned to zero as if the duration of the inflationary phase was immaterial for the gauge field fluctuations at large-scale. The serendipitous disappearance of the plasma (or even the partial neglect of its effects) depends on the symmetries of the system which are, in four space-time dimensions and in the simplest Abelian case, the invariance under Weyl rescaling and the electromagnetic duality symmetry. The quantum, thermal and conducting initial conditions of inflationary magnetogenesis are classified and discussed with the aim of determining when plasma effects can be effectively disregarded. The speculative implications of a non-degenerate monopole plasma for the conservation of the large-scale electric flux are briefly examined.

35 pages, 4 figures

References in corpus (7)

• Cosmology with inhomogeneous magnetic fields
• Large-scale magnetic fields in the inflationary universe
• Spectator field dynamics in de Sitter and curvaton initial conditions
• The interrelation between the generation of large-scale electric fields and that of large-scale magnetic fields during inflation
• Hanbury Brown-Twiss interferometry and second-order correlations of inflaton quanta
• Property of the spectrum of large-scale magnetic fields from inflation
• Bouncing Cosmologies

Cited by in corpus (11)

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• Spectator electric fields, de Sitter space-time and the Schwinger effect
• Inflationary susceptibilities, duality and large-scale magnetic fields generation
• Inflationary magnetogenesis, derivative couplings and relativistic Van der Waals interactions
• No-hair conjectures, primordial shear and protoinflationary initial conditions
• Bootstrapping from inflationary magnetogenesis to CMB initial conditions
• Palatini approach and large-scale magnetogenesis
• Statistical anisotropy from inflationary magnetogenesis
• Spontaneous magnetization of a vacuum in the hot Universe and intergalactic magnetic fields
• Spectator Higgs, large-scale gauge fields and the non-minimal coupling to gravity
• Effective horizons, junction conditions and large-scale magnetism