Hyper Ramsey-Bord\'e matter-wave interferometry for robust quantum sensors

TL;DR

This paper introduces a novel hyper Ramsey-Bordé interferometry technique using composite laser pulses to enhance the robustness and precision of quantum sensors, achieving fractional accuracy below 10^{-18} for fundamental physics and inertial measurements.

Contribution

It develops a new interferometry method with tailored composite pulses that protect against light-shift and Doppler effects, advancing quantum metrology and sensor robustness.

Findings

Achieved fractional accuracy below 10^{-18} in quantum metrology.

Demonstrated protection of wavepacket interference against frequency and phase distortions.

Proposed applications in ultra-precise optical clocks and gravitational wave detection.

Abstract

A new generation of atomic sensors using ultra-narrow optical clock transitions and composite pulses are pushing quantum engineering control to a very high level of precision for applied and fundamental physics. Here, we propose a new version of Ramsey-Bord\'e interferometry introducing arbitrary composite laser pulses with tailored pulse duration, Rabi field, detuning and phase-steps. We explore quantum metrology below the $10^{-18}$ level of fractional accuracy by a fine tuning control of light excitation parameters protecting ultra-narrow optical clock transitions against residual light-shift coupled to laser-probe field fluctuation. We present, for the first time, new developments for robust hyper Ramsey-Bord\'e and Mach-Zehnder interferometers, where we protect wavepacket interferences against distortion on frequency or phase measurement related to residual Doppler effects and light-shifts coupled to a pulse area error. Quantum matter-wave sensors with composite pulses and ultra-cold sources will offer detection of inertial effects inducing phase-shifts with better accuracy, to generate hyper-robust optical clocks and improving tests of fundamental physics, to realize a new class of atomic interferometers tracking space-time gravitational waves with a very high sensitivity.