Geometrodynamic steering principle reveals the determiners of inertia
- Texas Univ., Austin, TX (USA). Dept. of Physics
What shall the authors need to grasp the essence of quantum gravity One requirement, at least, is essential: to understand the steering principle of classical geometrodynamics. The authors outline here the physical content of that steering principle - heat of the so-called initial value problem - in its J.W. York, Jr. formulation. The central idea epitomizes itself in a single simple sentence: Mass-energy there determines inertia here. They spell out this steering principle both in its precise form and in its poor man's version. At both levels of analysis considerations of physics and mathematics alike require that the effective mass-energy of gravity waves must make itself felt on the spacetime geometry - and therefore on the gyro-defined local inertial frame of reference - on the same level as matter itself. Additional to the (mass)/(distance) Newtonian potential so familiar as measure of the effect of a nearby mass on the local frame is the Thirring and Lense gravitomagnetic potential, proportional to (angular momentum) x (distance vector)/(distance). The recent proposal of Ciufolini for a dual laser-ranged LAGEOS satellite to detect the thus-predicted gravitomagnetism of the earth is briefly described.
- OSTI ID:
- 5175499
- Journal Information:
- International Journal of Modern Physics A; (USA), Vol. 3:10; ISSN 0217-751X
- Country of Publication:
- United States
- Language:
- English
Similar Records
On the Einstein equivalence principle
Measurement of the Lense-Thirring drag on high-altitude, laser-ranged artificial satellites
Related Subjects
GENERAL PHYSICS
CLASSICAL MECHANICS
EARTH PLANET
MAGNETIC FIELDS
QUANTUM GRAVITY
GEOMETRY
GEOS SATELLITES
GRAVITATIONAL FIELDS
GRAVITY WAVES
LASERS
MOMENT OF INERTIA
NEWTON METHOD
PHYSICS
SPACE-TIME
FIELD THEORIES
ITERATIVE METHODS
MATHEMATICS
MECHANICS
PLANETS
QUANTUM FIELD THEORY
SATELLITES
657002* - Theoretical & Mathematical Physics- Classical & Quantum Mechanics
657003 - Theoretical & Mathematical Physics- Relativity & Gravitation