On Relativistic Material Reference Systems

Details On Relativistic Material Reference Systems On Relativistic Material Reference Systems

1995-09-14

arxiv.org/abs/gr-qc/9509026v1

Phys.Rev. D53 (1996) 1835-1844

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

18 pages, ReVTeX

Scientific paper

10.1103/PhysRevD.53.1835

This work closes certain gaps in the literature on material reference systems in general relativity. It is shown that perfect fluids are a special case of DeWitt's relativistic elastic media and that the velocity--potential formalism for perfect fluids can be interpreted as describing a perfect fluid coupled to a fleet of clocks. A Hamiltonian analysis of the elastic media with clocks is carried out and the constraints that arise when the system is coupled to gravity are studied. When the Hamiltonian constraint is resolved with respect to the clock momentum, the resulting true Hamiltonian is found to be a functional only of the gravitational variables. The true Hamiltonian is explicitly displayed when the medium is dust, and is shown to depend on the detailed construction of the clocks.

Affiliated with

Also associated with

No associations

Rating

On Relativistic Material Reference Systems 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 On Relativistic Material Reference Systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On Relativistic Material Reference Systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-158707