Re: White Holes are time-reversed black holes?
- From: "Slava Tapiadorov" <tapiadorov@xxxxxxxxxxx>
- Date: Wed, 30 Aug 2006 11:42:47 +0000 (UTC)
The problem with white holes is like that of black holes,
we do not know whether they really exist in Nature, as
theory predicts them. If you think about a white hole
behavior as being like that of a black hole, but with time
reversal, you get a model of gravitational system formed
of negative masses, repelling each other. Two negative
masses would repel, the same way two positive ones attract,
but then, what behavior would we expect for negative -
positive masses interactions?.
The root of this evil is vacuum solution to the Einstein
field equations. Even if you think about a black hole, you
have to deal with singularities in spacetime. A spacetime
singularity is an exotic conundrum, which arises only from
our misunderstanding of spacetime topology.
Grigori Perelman has achieved a correct proof of Thurston's
geometrization conjecture, so he's provided a correct proof
of Poincaré conjecture too. If we identify our spacetime as
having the same homology as a 3-sphere, then roughly speaking,
our spacetime can't exhibit holes (black/white). Therefore,
singularities must be treated with care -(maybe a universal
finite_lower bound for any gravitational potential).
Perelman preprints:
http://arxiv.org/abs/math.DG/0307245
http://arxiv.org/abs/math.DG/0303109
http://arxiv.org/abs/math.DG/0211159
.
- Follow-Ups:
- Re: White Holes are time-reversed black holes?
- From: Jeremy Henty
- Re: White Holes are time-reversed black holes?
- From: ebunn
- Re: White Holes are time-reversed black holes?
- Prev by Date: Re: Question on road to reality
- Next by Date: Re: Why quantization?
- Previous by thread: Re: White Holes are time-reversed black holes?
- Next by thread: Re: White Holes are time-reversed black holes?
- Index(es):
Relevant Pages
|
