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No black holes, no singularity, no big bang.

Carolina’s Laura Mersini-Houghton shows that black holes do not existhttp://uncnews.unc.edu/2014/09/23/carolinas-laura-mersini-houghton-shows-black-holes-exist/

 

THE BLACK HOLE INFORMATION PARADOX 

One of the biggest unanswered questions about black holes is the so-called information paradox.

Under current theories for black holes it is thought that nothing can escape from the event horizon around a black hole - not even light itself.

Inside the black hole is thought to be a singularity where matter is crushed to an infinitesimally small point as predicted by Einstein's theory of gravity.

However, a fundamental law of quantum theory states that no information from the universe can ever disappear.

This creates a paradox; how can a black hole make matter and information 'disappear'? 

Professor Mersini-Houghton's new theory manages to explain why this might be so - namely because black holes as we know them cannot exist. 



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http://scienceblogs.com/starts...-bang-wont-work-won/

 

http://arxiv.org/abs/arXiv:1406.1525

Particle creation leading to Hawking radiation is produced by the changing gravitational field of the collapsing star. The two main initial conditions in the far past placed on the quantum field from which particles arise, are the Hartle Hawking vacuum and the Unruh vacuum. The former leads to a time symmetric thermal bath of radiation, while the latter to a flux of radiation coming out of the collapsing star. The energy of Hawking radiation in the interior of the collapsing star is negative and equal in magnitude to its value at future infinity. This work investigates the backreaction of Hawking radiation on the interior of a gravitationally collapsing star, in a Hartle-Hawking initial vacuum. It shows that due to the negative energy Hawking radiation in the interior, the collapse of the star stops at a finite radius, before the singularity and the event horizon of a black hole have a chance to form. That is, the star bounces instead of collapsing to a black hole. A trapped surface near the last stage of the star's collapse to its minimum size may still exist temporarily. Its formation depends on the details of collapse. Results for the case of Hawking flux of radiation with the Unruh initial state, will be given in a companion paper II.

 

http://arxiv.org/abs/1409.1837

A star collapsing gravitationally into a black hole emits a flux of radiation, knowns as Hawking radiation. When the initial state of a quantum field on the background of the star, is placed in the Unruh vacuum in the far past, then Hawking radiation corresponds to a flux of positive energy radiation travelling outwards to future infinity. The evaporation of the collapsing star can be equivalently described as a negative energy flux of radiation travelling radially inwards towards the center of the star. Here, we are interested in the evolution of the star during its collapse. Thus we include the backreaction of the negative energy Hawking flux in the interior geometry of the collapsing star and solve the full 4-dimensional Einstein and hydrodynamical equations numerically. We find that Hawking radiation emitted just before the star passes through its Schwarzschild radius slows down the collapse of the star and substantially reduces its mass thus the star bounces before reaching the horizon. The area radius starts increasing after the bounce. Beyond this point our program breaks down due to shell crossing. We find that the star stops collapsing at a finite radius larger than its horizon, turns around and its core explodes. This study provides a more realistic investigation of the backreaction of Hawking radiation on the collapsing star, that was first presented in [1].

The universe may have existed forever, according to a new model that applies quantum correction terms to complement Einstein's theory of general relativity. The model may also account for dark matter and dark energy, resolving multiple problems at once.

Read more at: http://phys.org/news/2015-02-b...on-universe.html#jCp

 

Big Bang, Deflated? Universe May Have Had No Beginninghttp://www.livescience.com/49958-theory-no-big-bang.html

No Big Bang? New Equation Suggests Eternal Universehttp://21stcenturywire.com/2015/03/06/no-big-bang-new-equation-suggests-eternal-universe/

 

It Turns Out Primordial Gravitational Waves Weren’t FoundIt Turns Out Primordial Gravitational Waves Weren’t Foundwww.universetoday.com/118636/it-turns-out-primordial-gravitational-waves-werent-found/

 

A Joint Analysis of BICEP2/Keck Array and Planck Data

We report the results of a joint analysis of data from BICEP2/Keck Array and Planck. BICEP2 and Keck Array have observed the same approximately 400 deg2patch of sky centered on RA 0h, Dec. 57.5deg. The combined maps reach a depth of 57 nK deg in Stokes Q and U in a band centered at 150 GHz. Planck has observed the full sky in polarization at seven frequencies from 30 to 353 GHz, but much less deeply in any given region (1.2 μK deg in Q and U at 143 GHz). We detect 150×353 cross-correlation in B-modes at high significance. We fit the single- and cross-frequency power spectra at frequencies 150 GHz to a lensed-ΛCDM model that includes dust and a possible contribution from inflationary gravitational waves (as parameterized by the tensor-to-scalar ratio r), using a prior on the frequency spectral behavior of polarized dust emission from previous \planck\ analysis of other regions of the sky. We find strong evidence for dust and no statistically significant evidence for tensor modes. We probe various model variations and extensions, including adding a synchrotron component in combination with lower frequency data, and find that these make little difference to the r constraint. Finally we present an alternative analysis which is similar to a map-based cleaning of the dust contribution, and show that this gives similar constraints. The final result is expressed as a likelihood curve for r, and yields an upper limit r0.05<0.12 at 95% confidence. Marginalizing over dust and r, lensing B-modes are detected at 7.0σ significance.http://arxiv.org/abs/1502.00612
when it comes to big bang ripples, all we have is dust in the wind. In March of last year, a team of astronomers working with the BICEP2 telescope at the South Pole caused a flurry of excitement when they claimed to have discovered evidence for primordial gravitational waves, ripples in space-time triggered by a growth spurt in the universe’s early days. However, a leaked press release has teased the results from a long-awaited joint analysis between BICEP2 and a European space telescope team, the Planck collaboration. As many had feared, the release says that the signal was caused by something much more mundane: dust.


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