Extracting the differential phase in dual atom interferometers by modulating magnetic fields

Abstract

We present a new scheme for measuring the differential phase in dual atom interferometers. The magnetic field is modulated in one interferometer, and the differential phase can be extracted without measuring the amplitude of the magnetic field by combining the ellipse and linear fitting methods. The gravity gradient measurements are discussed based on dual atom interferometers. Numerical simulation shows that the systematic error of the differential phase measurement is largely decreased when the duration of the magnetic field is symmetrically modulated. This combined fitting scheme has a high accuracy for measuring an arbitrary differential phase in dual atom interferometers.

5 pages, 4 figures

References in corpus (17)

• Precision Measurement of the Newtonian Gravitational Constant Using Cold Atoms
• Sensitive Absolute Gravity Gradiometry Using Atom Interferometry
• 6-axis inertial sensor using cold-atom interferometry
• Quantum Test of the Universality of Free Fall
• Test of Equivalence Principle at $10^{-8}$ Level by a Dual-species Double-diffraction Raman Atom Interferometer
• Limits to the sensitivity of a low noise compact atomic gravimeter
• Determination of the Newtonian Gravitational Constant Using Atom Interferometry
• Test of Einstein Equivalence Principle for 0-spin and half-integer-spin atoms: Search for spin-gravity coupling effects
• Sensitivity limits of a Raman atom interferometer as a gravity gradiometer
• Characterization and limits of a cold atom Sagnac interferometer
• Testing Gravity with Cold-Atom Interferometers
• Measurement of the Gravity-Field Curvature by Atom Interferometry
• Atom interferometry gravity-gradiometer for the determination of the Newtonian gravitational constant G
• Correlative methods for dual-species quantum tests of the weak equivalence principle
• Sensitive gravity-gradiometry with atom interferometry: progress towards an improved determination of the gravitational constant
• Measurement of the quadratic Zeeman shift of ^{85}Rb hyperfine sublevels using stimulated Raman transitions
• Magnetic Trapping of Cold Bromine Atoms

Cited by in corpus (9)

• ZAIGA: Zhaoshan Long-baseline Atom Interferometer Gravitation Antenna
• Atom interferometry with the Sr optical clock transition
• Testing gravity with cold atom interferometry: Results and prospects
• Precision Gravity Tests and the Einstein Equivalence Principle
• United test of the equivalence principle at $10^{-10}$ level using mass and internal energy specified atoms
• Bragg gravity-gradiometer using the ${}^1$S${}_0$-${}^3$P${}_1$ intercombination transition of ${}^{88}$Sr
• New apparatus design for high-precision measurement ofG with atom interferometry
• Scheme for suppressing atom expansion induced contrast loss in atom interferometers
• Measuring the gravitational acceleration with precision matter-wave velocimetry