Tailoring multi-loop atom interferometers with adjustable momentum transfer
arXiv:2006.08371 · doi:10.1103/PhysRevLett.125.213201
Abstract
Multi-loop matter-wave interferometers are essential in quantum sensing to measure the derivatives of physical quantities in time or space. Because multi-loop interferometers require multiple reflections, imperfections of the matter-wave mirrors create spurious paths that scramble the signal of interest. Here we demonstrate a method of adjustable momentum transfer that prevents the recombination of the spurious paths in a double-loop atom interferometer aimed at measuring rotation rates. We experimentally study the recombination condition of the spurious matter waves, which is quantitatively supported by a model accounting for the coherence properties of the atomic source. We finally demonstrate the effectiveness of the method in building a cold-atom gyroscope with a single-shot acceleration sensitivity suppressed by a factor of at least 50. Our study will impact the design of multi-loop atom interferometers that measure a single inertial quantity.
arXiv comment4 pages of main text, 33 references, 6 pages of Supplemental Material
References in corpus (20)
- Atom Interferometers
- Sensitive Absolute Gravity Gradiometry Using Atom Interferometry
- 6-axis inertial sensor using cold-atom interferometry
- Exploring gravity with the MIGA large scale atom interferometer
- Continuous Cold-atom Inertial Sensor with Rotation Stability
- Interleaved Atom Interferometry for High Sensitivity Inertial Measurements
- High-accuracy inertial measurements with cold-atom sensors
- An Atomic Gravitational Wave Interferometric Sensor in Low Earth Orbit (AGIS-LEO)
- A Resonant Mode for Gravitational Wave Detectors based on Atom Interferometry
- Effective inertial frame in an atom interferometric test of the equivalence principle
- Circumventing Heisenberg's uncertainty principle in atom interferometry tests of the equivalence principle
- Atom interferometer as a selective sensor of rotation or gravity
- Does an atom interferometer test the gravitational redshift at the Compton frequency ?
- Gravitation and quantum interference experiments with neutrons
- Simultaneous accurate determination of both gravity and its vertical gradient
- Scalable, symmetric atom interferometer for infrasound gravitational wave detection
- Proof-of-principle demonstration of vertical gravity gradient measurement using a single proof mass double-loop atom interferometer
- Accurate trajectory alignment in cold-atom interferometers with separated laser beams
- Matter-wave interferometry with composite quantum objects
- Asymmetric Mach-Zehnder atom interferometers
Cited by in corpus (7)
- Accurate measurement of the Sagnac effect for matter waves
- Multi-loop atomic Sagnac interferometry
- Robust Quantum Control via Multipath Interference for Thousandfold Phase Amplification in a Resonant Atom Interferometer
- Bragg-diffraction-induced imperfections of the signal in retroreflective atom interferometers
- Spinor matterwave control with nanosecond spin-dependent kicks
- Dichroic mirror pulses for optimized higher-order atomic Bragg diffraction
- Sequantial large momentum transfer exploiting rectangular Raman pulses