The gravitational phase shift in a matter-wave interferometer (MIGO)

TL;DR

This paper revises the calculation of gravitational phase shifts in matter-wave interferometers, correcting initial phase considerations and confirming the original qualitative results about the phase shift's behavior.

Contribution

It provides a corrected computation of gravitational phase shifts in matter-wave interferometers, addressing initial phase effects previously overlooked.

Findings

Corrected phase shift calculation includes initial phase effects.

The revised computation qualitatively confirms original results.

The phase shift is proportional to the derivative of the signal.

Abstract

The original computation did not take into account the initial phase shift. A corrected computation, included as section II in the revised version of gr-qc/0407039, still gives a term proportional to the derivative of the signal, qualitatively confirming the original result.