Electromagnetism and hidden vector fields in modified gravity theories: spontaneous and induced vectorization

Abstract

In general relativity, Maxwell's equations are embedded in curved spacetime through the minimal prescription, but this could change if strong-gravity modifications are present. We show that with a nonminimal coupling between gravity and a massless vector field, nonperturbative effects can arise in compact stars. We find solutions describing stars with nontrivial vector field configurations, some of which are associated to an instability, while others are not. The vector field can be interpreted either as the electromagnetic field, or as a hidden vector field weakly coupled with the standard model.

12 pages, RevTeX4. Matches published version

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Cited by in corpus (43)

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• Core collapse in massive scalar-tensor gravity
• Probing Crust Meltdown in Inspiraling Binary Neutron Stars
• Spontaneous vectorization of electrically charged black holes
• Thin accretion disk signatures of scalarized black holes in Einstein-scalar-Gauss-Bonnet gravity
• Instability of vectorized stars
• Spontaneous vectorization in the presence of vector field coupling to matter
• Coordinate singularities of self-interacting vector field theories
• Neutron Stars in Scalar-Tensor Theories: Analytic Scalar Charges and Universal Relations
• Stealth spontaneous spinorization of relativistic stars
• Resolving phase transition properties of dense matter through tidal-excited g-mode from inspiralling neutron stars
• Neutron stars in the bumblebee theory of gravity
• Spontaneous scalarization of a conducting sphere in Maxwell-scalar models
• Pervasiveness of the breakdown of self-interacting vector field theories
• Collective scalarization or tachyonization: when averaging fails
• Spin-induced scalarization and magnetic fields
• Neutron star pulse profile observations as extreme gravity probes
• Treatments and placebos for the pathologies of effective field theories
• Schwarzschild quasi-normal modes of non-minimally coupled vector fields
• Loss of hyperbolicity and tachyons in generalized Proca theories
• Spontaneous scalarization of charged stars
• Disformal transformation of physical quantities associated with relativistic stars
• Scalar-Connection Gravity and Spontaneous Scalarization
• Angular and radial stabilities of spontaneously scalarized black holes in the presence of scalar-Gauss-Bonnet couplings
• Instabilities of scalar fields around oscillating stars
• Symmetric wormholes in Einstein-vector-Gauss-Bonnet theory
• CLAP for modified gravity: scalar instabilities in binary black hole spacetimes
• Static and spherically symmetric general relativity solutions in Minimal Theory of Bigravity
• Analogues of gravity-induced instabilities in anisotropic metamaterials
• Spontaneous Vectorization in the Einstein-Maxwell-Vector Model
• Symmetry restoration in the vicinity of neutron stars with a nonminimal coupling
• Exploring Scalarized Einstein-Gauss-Bonnet Theories Through the Lens of Parametrized Post-Newtonian Formalism
• Black hole destabilization via trapped quasi-normal modes
• Interaction of the Cosmic Dark Fluid with Dynamic Aether: Parametric Mechanism of Axion Generation in the Early Universe
• No-Go Theorems for Hairy Black Holes in Scalar- or Vector-Tensor-Gauss-Bonnet Theory
• Challenging theories of gravitation: dark matter, compact objects and gravitational waves
• The ghost of vector fields in compact stars
• The intrinsic pathology of self-interacting vector fields
• Extension of the Einstein-Dirac-axion-aether theory based on an effective metric with a spinor kernel