cosmic censorship hypothesis

(redirected from Cosmic censorship)

cosmic censorship hypothesis

[′käz·mik ′sen·sər‚ship hī‚päth·ə·səs]
(astronomy)
The hypothesis that a system which evolves according to the equations of general relativity from an initial state that does not have singularities or any unusual properties will not develop any space-time singularities that would be visible from large distances.
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As quoted by Physics World, Gary Horowitz of UC Santa Barbara, who was not involved in the research, said that the study provides "the best evidence I know for a violation of strong cosmic censorship in a theory of gravity and electromagnetism.
Introducing charged particles in the simulation could make the naked singularity disappear, according to Santos, who said: "If true, it could imply a connection between the cosmic censorship conjecture and the weak gravity conjecture, which says that any consistent theory of quantum gravity must contain sufficiently charged particles.
181101) a paper titled "Violating the Weak Cosmic Censorship Conjecture in Four-Dimensional Anti6de Sitter Space.
On the one hand, the control of low regularity solutions of the Einstein equations, a topic which is intimately linked with the celebrated cosmic censorship conjectures of R.
I discuss some of the theoretical and experimental infrastructure required to make a conclusive test of the cosmic censorship and causality conjectures on which these theorems are based.
He begins by reviewing the background from the theory of partial differential equations and in geometry, global hyperbolicity, and uniqueness before moving on to general relativity and then pathologies and strong cosmic censorship.
The strictest form of the censorship prohibits the existence of 'naked' (visible) singularities by prescribing Laplacian determinism: the hypothesis of strong cosmic censorship is said to hold if and only if the spacetime possesses a Cauchy surface.
This violation of cosmic censorship represents a potential disaster for general relativity, Shapiro says.
au/cosmos/C/Cosmic+Censorship+Conjecture) Roger Penrose's cosmic censorship conjecture , which basically states that no imploding object can ever give rise to a naked singularity, is true.
This line of research will significantly advance our knowledge regarding the stability of more realistic (non-vacuum, non-spherically symmetric) BHs, as well as on outstanding issues, such as cosmic censorship.
That question, in turn, raises deep, ill-understood issues about cosmic censorship, quantum gravity and quantum field theory.
B) Resolution of outstanding problems in gravitational physics, in particular of problems of direct relevance to cosmic censorship (critical collapse, endpoint of black brane instabilities), and of the quantum theory of black holes.
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