Quantum gravimetry in the same internal state using composite light Raman pulses

Abstract

We introduce an atomic gravimetric sequence using Raman-type composite light pulses that excites a superposition of two momentum states with the same internal level. The scheme allows the suppression of common noise, making it less sensitive to external fluctuations of electromagnetic fields. The Raman beams are generated with a fiber modulator and are capable of momentum transfer in opposite directions. We obtain analytical expressions for the interference fringes in terms of three perturbative parameters that characterize the imperfections due to undesired frequencies introduced by the modulation process. We find special values of the Rabi frequency that improve the fringes visibility.

11 pages, 6 figures

References in corpus (18)

• Multi-axis inertial sensing with long-time point source atom interferometry
• Gravity measurements below $10^{-9}$ $g$ with a transportable absolute quantum gravimeter
• Limits to the sensitivity of a low noise compact atomic gravimeter
• Compact cold atom gravimeter for field applications
• Precision atomic gravimeter based on Bragg diffraction
• Probing gravity by holding atoms for 20 seconds
• Atom interferometers with scalable enclosed area
• Enhancing the area of a Raman atom interferometer using a versatile double-diffraction technique
• Local gravity measurement with the combination of atom interferometry and Bloch oscillations
• Double Bragg diffraction: A tool for atom optics
• Transportable laser system for atom interferometry
• Phase shift in an atom interferometer induced by the additional laser lines of a Raman laser generated by modulation
• Narrow linewidth single laser source system for onboard atom interferometry
• Broadband Optical Serrodyne Frequency Shifting
• Wide bandwidth phase-locked diode laser with an intra-cavity electro-optic modulator
• Atomic Qubit Manipulations with an Electro-Optic Modulator
• Quantum projection noise limited interferometry with coherent atoms in a Ramsey type setup
• A two-state Raman coupler for coherent atom optics

Cited by in corpus (2)

• Lineshape-asymmetry-caused shift in atomic interferometers
• Hyper Ramsey-Bordé matter-wave interferometry for robust quantum sensors