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Revised Eddington theory of gravity produces universe without a BigBang singularity



 
 
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Old July 17th 10, 09:34 AM posted to sci.astro,sci.physics
Yousuf Khan
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Posts: 594
Default Revised Eddington theory of gravity produces universe without a BigBang singularity

Revised theory of gravity doesn't predict a Big Bang
"Although Eddington played a significant role in developing general
relativity, during the following decades he became more interested in
finding a theory to unify gravity and quantum mechanics - a task that is
still being studied today. In 1924, Eddington proposed a new
“gravitational action” as an alternative to the Einstein-Hilbert action,
which could serve as an alternative starting point to general
relativity. In astrophysics, a gravitational action is the mechanism
that describes how gravity can emerge from space-time being curved by
matter and energy. However, Eddington’s theory of gravity only worked
for empty space and didn’t include any source of energy such as matter,
making it an incomplete theory.

Since Eddington’s proposal, scientists have attempted various ways of
including matter into the theory, although they have run into problems.
In this study, Banados and Ferreira have tried a new way to extend the
theory to include matter by using a gravitational action called the
Born-Infeld action. "
http://www.physorg.com/news198135631.html
  #2  
Old July 17th 10, 10:31 AM posted to sci.astro,sci.physics
eric gisse
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Default Revised Eddington theory of gravity produces universe without a Big Bang singularity

Yousuf Khan wrote:

Revised theory of gravity doesn't predict a Big Bang


http://prl.aps.org/abstract/PRL/v105/i1/e011101

The paper says otherwise, but remains remarkably uninteresting.

[...]

 




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