down with black holes....[lite]


"if a quantum critical phase transition happened on the surface of a star,
it would slow down time and the surface would behave just like a black
hole's event horizon."

http://www.newscientist.com/channel/fundamentals/mg18925423.600.html
"With this idea in mind, they - along with Emil Mottola at the Los Alamos
National Laboratory in New Mexico, Pawel Mazur of the University of South
Carolina in Columbia and colleagues - analysed the collapse of massive
stars in a way that did not allow any violation of quantum mechanics. Sure
enough, in place of black holes their analysis predicts a phase transition
that creates a thin quantum critical shell. The size of this shell is
determined by the star's mass and, crucially, does not contain a
space-time singularity. Instead, the shell contains a vacuum, just like
the energy-containing vacuum of free space. As the star's mass collapses
through the shell, it is converted to energy that contributes to the
energy of the vacuum.

The team's calculations show that the vacuum energy inside the shell has a
powerful anti-gravity effect, just like the dark energy that appears to be
causing the expansion of the universe to accelerate. Chapline has dubbed
the objects produced this way "dark energy stars". "
....
"The most intriguing fallout from this idea has to do with the strength of
the vacuum energy inside the dark energy star. This energy is related to
the star's size, and for a star as big as our universe the calculated
vacuum energy inside its shell matches the value of dark energy seen in
the universe today. "It's like we are living inside a giant dark energy
star," Chapline says. There is, of course, no explanation yet for how a
universe-sized star could come into being."

regards...

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