General Relativistic Effects on Quantum Interference and the Principle of Equivalence

Abstract

Using a novel approach, we work out the general relativistic effects on the quantum interference of de Broglie waves associated with thermal neutrons. The unified general formula is consistent with special relativistic results in the flat space limit. It is also shown that the exact geodesic equation contains in a natural way a gravitational analog of the Aharonov-Bohm effect. We work out two examples, one in general relativity and the other in heterotic string theory, in order to obtain the first order gravitational correction terms to the quantum fringe shift. Measurement of these terms is closely related to the validity of the equivalence principle at a quantum level.

14 pages, 1 figure

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• Upper limit on NUT charge from the observed terrestrial Sagnac effect
• Quantum phase shift and neutrino oscillations in a stationary, weak gravitational field
• Terrestrial Sagnac delay in scalar-tensor-vector-gravity