Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2008-09-13
PracticalCosmology.1:276-286,2008
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
11 pages, Proceedings of the International conference "Problems of Practical Cosmology", 23-27 June 2008, St.-Petersburg, Russ
Scientific paper
A history of the problem of mathematical and physical definition for the energy-momentum of the gravity field is reviewed. As it was noted 90 years ago by Hilbert (1917), Einstein (1918), Schrodinger (1918) and Bauer (1918) within Geometrical Gravity approach (General Relativity) there is no tensor characteristics of the energy-momentum for the gravity field. Landau & Lifshitz (1971) called this quantity pseudo-tensor of energy-momentum and noted that Einstein's equations does not express the energy conservation for matter plus gravity field. This has crucial consequences for gravity physics and cosmology, such as negative energy density for static gravity field and violation of energy conservation in expanding space. However there is alternative Field Gravity approach for description of gravitation as a symmetric tensor field in Minkowski space, which is similar to description of all other physical interactions and based on well-defined positive, localizable energy-momentum of the gravity field. This relativistic quantum Field Gravity approach was partially developed by Firz & Pauli (1939), Birkhoff (1944), Thirring (1961), Kalman (1961), Feynman (1963) and others. Here it is shown that existence of well-defined positive energy-momentum of the gravity field leads to radical changes in gravity physics and cosmology, including such new possibilities as two-component nature of gravity - attraction (spin 2) and repulsion (spin 0), absence of black holes and singularities, scalar gravitational radiation caused by spherically symmetric gravitational collapse.
No associations
LandOfFree
Energy-Momentum of the Gravitational Field: Crucial Point for Gravitation Physics and Cosmology 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 Energy-Momentum of the Gravitational Field: Crucial Point for Gravitation Physics and Cosmology, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Energy-Momentum of the Gravitational Field: Crucial Point for Gravitation Physics and Cosmology will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-603873