Gravitationally-Induced Quantum Superpopsition Reduction with Large Extra Dimensions

Details Gravitationally-Induced Quantum Superpopsition Reduction with Large Extra Dimensions Gravitationally-Induced Quantum Superpopsition Reduction with Large Extra Dimensions

2005-09-20

arxiv.org/abs/gr-qc/0509082v2

Phys.Rev.D73:064012,2006

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

22 pp; 1 postscript figure Expanded version of previous submission To appear in Phys Rev D

Scientific paper

10.1103/PhysRevD.73.064012

A gravity-driven mechanism (``objective reduction'') proposed to explain quantum state reduction is analyzed in light of the possible existence of large extra dimensions in the ADD scenario. By calculating order-of-magnitude estimates for nucleon superpositions, it is shown that if the mechanism at question is correct, constraints may be placed on the number and size of extra dimensions. Hence, measurement of superposition collapse times ({\it e.g.} through diffraction or reflection experiments) could represent a new probe of extra dimensions. The influence of a time-dependent gravitational constant on the gravity-driven collapse scheme with and without the presence of extra dimensions is also discussed.

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