Gravity from Spacetime Thermodynamics

Details Gravity from Spacetime Thermodynamics Gravity from Spacetime Thermodynamics

2002-09-24

arxiv.org/abs/gr-qc/0209088v2

Astrophys.Space Sci. 285 (2003) 407

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Invited talk at the conference "Fred Hoyle's Universe", Cardiff, June 24-26; sharpens the arguments and extends the results of

Scientific paper

10.1023/A:1025448712533

The Einstein-Hilbert action (and thus the dynamics of gravity) can be obtained by combining the principle of equivalence, special relativity and quantum theory in the Rindler frame and postulating that the horizon area must be proportional to the entropy. This approach uses the local Rindler frame as a natural extension of the local inertial frame, and leads to the interpretation that the gravitational action represents the free energy of the spacetime geometry. As an aside, one obtains an insight into the peculiar structure of Einstein-Hilbert action and a natural explanation to the questions:(i) Why does the covariant action for gravity contain second derivatives of the metric tensor? (ii) Why is the gravitational coupling constant is positive ? Some geometrical features of gravitational action are clarified.

Affiliated with

Also associated with

No associations

Rating

Gravity from Spacetime Thermodynamics does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Gravity from Spacetime Thermodynamics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gravity from Spacetime Thermodynamics will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-612421