Dispersion compensation in atom interferometry by a Sagnac phase

Abstract

We reanalyzed our atom interferometer measurement of the electric polarizability of lithium now accounting for the Sagnac effect due to Earth rotation. The resulting correction to the polarizability is very small but the visibility as a function of the applied phase shift is now better explained. The fact that the Sagnac and polarizability phase shifts are both proportional to $v^{-1}$, where $v$ is the atom velocity, suggests that a phase shift of the Sagnac type could be used as a counterphase to compensate the electric polarizability phase shift. This exact compensation opens the way to higher accuracy measurements of atomic polarizabilities and we discuss how this can be practically done and the final limitations of the proposed technique.

References in corpus (5)

• 6-axis inertial sensor using cold-atom interferometry
• Atom interferometry measurement of the electric polarizability of lithium
• Measurement of the electric polarizability of lithium by atom interferometry
• Dispersion Compensation for Atom Interferometry
• Vibration induced phase noise in Mach-Zehnder atom interferometers

Cited by in corpus (6)

• Absolute and ratio measurements of the polarizability of Na, K, and Rb with an atom interferometer
• Measurements of the Ground-State Polarizabilities of Cs, Rb, and K using Atom Interferometry
• Atom Interferometer Gyroscope with Spin-Dependent Phase Shifts Induced by Light near a Tune-Out Wavelength
• Optical pumping of a lithium atomic beam for atom interferometry
• Test of the He-McKellar-Wilkens topological phase by atom interferometry. Part I: theoretical discussion
• Closed-loop measurements in an atom interferometer gyroscope with velocity-dependent phase-dispersion compensation