## 3 Citations

Effective horizons, junction conditions and large-scale magnetism

- Physics
- 2017

The quantum mechanical generation of hypermagnetic and hyperlectric fields in four-dimensional conformally flat background geometries rests on the simultaneous continuity of the effective horizon and…

Probing large-scale magnetism with the cosmic microwave background

- Physics
- 2017

Prior to photon decoupling magnetic random fields of comoving intensity in the nano-Gauss range distort the temperature and the polarization anisotropies of the microwave background, potentially…

Quantum coherence of relic gravitons and Hanbury Brown-Twiss interferometry

- PhysicsPhysical Review D
- 2019

The coherence of the relic gravitons is investigated within a quantum mechanical perspective. After introducing the notion and the properties of the generalized Glauber correlators valid in the…

## References

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- Physics
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An appropriate gauge-invariant framework for the treatment of magnetized curvature and entropy modes is developed. It is shown that large-scale magnetic fields, present after neutrino decoupling,…

Metric perturbation from inflationary magnetic field and generic bound on inflation models

- Physics
- 2012

There is an observational indication of extragalactic magnetic fields. No known astrophysical process can explain the origin of such large scale magnetic fields, which motivates us to look for their…

Inflationary magnetogenesis, derivative couplings, and relativistic Van der Waals interactions

- Physics
- 2015

When the gauge fields have derivative couplings to scalars, like in the case of the relativistic theory of Van der Waals (or Casimir-Polder) interactions, conformal invariance is broken but the…

Inflationary magnetogenesis with broken local U(1) symmetry

- Physics
- 2015

We point out that a successful inflationary magnetogenesis could be realised if we break the local U(1) gauge symmetry during inflation. The effective electric charge is fixed as a fundamental…

Primordial magnetic fields from string cosmology.

- PhysicsPhysical review letters
- 1995

Sufficiently large seeds for generating the observed (inter)galactic magnetic fields emerge naturally in string cosmology from the amplification of electromagnetic vacuum fluctuations due to a…

On the variation of the gauge couplings during inflation

- Physics
- 2001

It is shown that the evolution of the (Abelian) gauge coupling during an inflationary phase of de Sitter type drives the growth of the two-point function of the magnetic inhomogeneities. After…

Fluctuations of inflationary magnetogenesis

- Physics
- 2013

This analysis aims at exploring what can be said about the growth rate of magnetized inhomogeneities under two concurrent hypotheses: a phase of quasi-de Sitter dynamics driven by a single inflaton…

Spectator Higgs field, large-scale gauge fields, and the nonminimal coupling to gravity

- Physics
- 2017

Even if the Higgs field does not affect the evolution of the background geometry, its massive inhomogeneities induce large-scale gauge fields whose energy density depends on the slow-roll parameters,…

Cosmological 'seed' magnetic field from inflation

- Physics
- 1991

We extend the canonical exponential potential scalar field inflation modified hot big bang model by adding an inflation epoch coupling, between the scalar field Φ responsible for inflation and an…