Cooperstock's Energy Localization Hypothesis

From Wikipedia, the free encyclopedia

This article is orphaned as few or no other articles link to it. Please help introduce links in articles on related topics. (October 2006)

This article or section is in need of attention from an expert on the subject. WikiProject Science or the Science Portal may be able to help recruit one. If a more appropriate WikiProject or portal exists, please adjust this template accordingly.

A proposal by Fred Cooperstock that in general relativity, energy only exists in regions of non-vanishing energy-momentum tensor^[1].

Since the creation of general relativity there have been questions about the energy of gravitational fields. Among the proposals for the energy are the Landau-Lifshitz pseudotensor, Einstein pseudotensor, and the Moller energy.

In Misner, Thorne & Wheeler^[2] the authors claimed that energy can only be localized for spherical system, which Cooperstock & Sarracino ^[3] demonstrated implies that energy must be localized for all system, while Bondi ^[4] argued that non-localizable energy is not allowed in general relativity.

The energy localization hypothesis has also been proven for a number of specific examples (see for example Ref ^[5]), but has not been proven or disproven in general.

Feynman's sticky bead argument shows that energy is transported by gravitational waves, which is difficult to make compatible with the Cooperstock's hypothesis.

[edit] References

1. ^ F.I. Cooperstock, Found. Phys. 22, 1011 (1992)
2. ^ Misner, Charles; Thorne, Kip S. & Wheeler, John Archibald (1973). Gravitation. San Francisco: W. H. Freeman. ISBN 0-7167-0344-0.
3. ^ F.I. Cooperstock and R.S. Sarracino, J. Phys. A11, 877 (1978)
4. ^ H. Bondi, Proc. R. Soc. London A427,249 (1990)
5. ^ S.S. Xulu, Mod. Phys. Lett. A15, 1511 (2000); Int. J. Mod. Phys. A15, 4849 (2000)