On the Microscopical Structure of the Classical Spacetime

Details On the Microscopical Structure of the Classical Spacetime On the Microscopical Structure of the Classical Spacetime

2004-08-19

arxiv.org/abs/hep-th/0408151v1

Physics

High Energy Physics

High Energy Physics - Theory

This note contains the conceptual framework of the essay presented in the Gravity Research Foundation Competition, 2004

Scientific paper

Our purpose here is to introduce the idea of viewing the spacetime as a macroscopic complex system which, consequently, cannot be directly quantized. It should be thought of as a collection of more fundamental "microscopical" entities (atoms of geometry), much like a solid system, in which an atomic (classical) structure must be first recognized in order to ensure a correct and meaningful quantization procedure. In other words, we claim that the classical limit from a quantum theory of gravity could not give a four dimensional Einstein spacetime directly, but requiring {\it a further} macroscopical limit. This is analogous to a material medium, whose complete description does not come from any quantized field. We also discuss a possible realization of this hypothesis for black hole spacetimes.

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