Comment on: "Does an atom interferometer test the gravitational redshift at the Compton frequency?"

Abstract

We show that Wolf et al.'s 2011 analysis in Class. Quant. Grav. v28, 145017 does not support their conclusions, in particular that there is "no redshift effect" in atom interferometers except in inconsistent dual Lagrangian formalisms. Wolf et al. misapply both Schiff's conjecture and the results of their own analysis when they conclude that atom interferometers are tests of the weak equivalence principle which only become redshift tests if Schiff's conjecture is invalid. Atom interferometers are direct redshift tests in any formalism.

To appear in Classical and Quantum Gravity

References in corpus (4)

• New determination of the fine structure constant and test of the quantum electrodynamics
• New Limits on Coupling of Fundamental Constants to Gravity Using ${}^{87}$Sr Optical Lattice Clocks
• General Relativistic Effects in Atom Interferometry
• Reply to: Atom gravimeters and the gravitational redshift

Cited by in corpus (7)

• Gravitational Decoherence
• Testing gravity with cold atom interferometry: Results and prospects
• Precision Gravity Tests and the Einstein Equivalence Principle
• Gravitational Redshift Tests with Atomic Clocks and Atom Interferometers
• On the gravitational redshift
• Proper time in atom interferometers: Diffractive versus specular mirrors
• Phases and relativity in atomic gravimetry