REVIEW 9 cited by
Regular black holes sourced by nonlinear electrodynamics
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
abstract
The paper is a brief review on the existence and basic properties of static, spherically symmetric regular black hole solutions of general relativity, where the source of gravity is represented by nonlinear electromagnetic fields with the Lagrangian function $L$ depending on the single invariant $f = F_{\mu\nu}F^{\mu\nu}$ or on two variables: either $L(f, h)$, where $h = {^*}F_{\mu\nu} F^{\mu\nu}$, where ${^*}F_{\mu\nu}$ is the Hodge dual of $F_{\mu\nu}$, or $L(f, J)$, where $J = F_{\mu\nu}F^{\nu\rho} F_{\rho\sigma} F^{\sigma\mu}$. A number of no-go theorems are discussed, revealing the conditions under which the space-time cannot have a regular center, among which the theorems concerning $L(f,J)$ theories are probably new. These results concern both regular black holes and regular particlelike or starlike objects (solitons) without horizons. Thus, a regular center in solutions with an electric charge $q_e\ne 0$ is only possible with nonlinear electrodynamics (NED) having no Maxwell weak field limit. Regular solutions with $L(f)$ and $L(f, J)$ NED, possessing a correct (Maxwell) weak-field limit, are possible if the system contains only a magnetic charge $q_m \ne 0$. It is shown, however, that in such solutions the causality and unitarity as well as dynamic stability conditions are inevitably violated in a neighborhood of the center. Some particular examples are discussed.
Forward citations
Cited by 9 Pith papers
-
All $2D$ generalised dilaton theories from $d\geq 4$ gravities
Generic 2D Horndeski theories arise from dimensional reduction of d≥4 gravities, yielding a Birkhoff theorem for quasi-topological gravities where static spherically symmetric solutions satisfy g_tt g_rr = -1 and are ...
-
Regular black holes from pure gravity in four dimensions
A construction of four-dimensional pure-gravity actions whose vacuum solutions include the Hayward and Dymnikova regular black holes, via a lift from two-dimensional Horndeski theory.
-
Regular Black Holes in General Relativity from Nonlinear Electrodynamics with de Sitter Cores
Two new regular black-hole solutions with de Sitter cores, supported by magnetic nonlinear electrodynamics, are constrained by Sgr A* shadows and shown to be linearly stable under scalar perturbations.
-
Two shadows of a single black hole: Vacuum birefringence phenomena within Einstein-nonlinear-electrodynamics
Vacuum birefringence in nonlinear electrodynamics can make a single static black hole cast two slightly different shadows, one per photon polarization.
-
Cauchy Horizon (In)Stability of Regular Black Holes
For regular black holes, the Cauchy horizon mass typically grows exponentially or as a power law; for the asymptotically safe collapse model it grows logarithmically, reaching the horizon without a transient mass-infl...
-
Quasibound states of a charged Dirac field around regular black holes
Charged massive Dirac quasibound modes on ABG black holes stay damped; ABG and RN share hydrogenic real frequencies, but ABG’s inner barrier can make some modes much longer-lived.
-
Spherically symmetric and static black bounces with multiple horizons, throats, and anti-throats in four dimensions
A new family of static, spherically symmetric black bounce spacetimes with multiple horizons, throats, and anti-throats is constructed and sourced by a partially phantom scalar field with nonlinear electrodynamics.
-
Embedding Wormholes and Dyonic Black Strings in Warped Braneworlds via Local Sum Rules
Embedding of Ellis-Bronnikov wormhole and NED-sourced magnetic/dyonic black strings into RS braneworlds using Local Sum Rules; the dyonic q→0 limit is inconsistent as written.
-
Hayward Boson Stars
Hayward boson stars exist only when sqrt(beta)/Q > 1.49661, exactly where the vacuum Hayward spacetime has no horizon.
Discussion (0). Continue with ORCID to comment.