An Approximate Model of the Spacetime Foam

Details An Approximate Model of the Spacetime Foam An Approximate Model of the Spacetime Foam

2000-06-05

arxiv.org/abs/gr-qc/0006016v2

Int.J.Mod.Phys. D11 (2002) 299-310

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

essential changes: exact mathematical definitions of the spinor field describing approximately spacetime foam is inserted

Scientific paper

10.1142/S0218271802001639

An approximate model of the spacetime foam is offered in which a quantum handle (wormhole) is a 5D wormhole-like solution. Neglecting the linear sizes of the wormhole throat we can introduce a spinor field for an approximate and effective description of the foam. The definition of the spinor field can be made by a dynamic and non-dynamic ways. In the first case some field equations are used and the second case leads to superspace. It is shown that : the spacetime with the foam is similar to a dielectric with dipoles and supergravity theories with a non-minimal interaction between spinor and electromagnetic fields can be considered as an effective model for the spacetime foam.

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