Ucr-hep-t117 Time-symmetric Approach to Gravity

Quantization of the time symmetric system of interacting strings requires that gravity, just as electromagnetism in Wheeler-Feynman’s time symmetric electrodynamics, also be an “adjunct field” instead of an independent entity. The “adjunct gravitational field” emerges, at a scale large compared to that ot the strings, as a “statistic” that summarizes how the string positions in the underlying space-time are “compactified” into those in Minkowski space. We are able to show, without adding a scalar curvature term to the string action, that the “adjunct gravitational field” satisfies Einstein’s equation with no cosmological term.