abstract

• A promising alternative for atomic gravimetry has been proposed using a magnetic-field gradient, which has a T3 scaling on the phase and does not require counterpropagating Raman beams. We analyze the limits in the precision of this method coming from the thermal expansion of the atomic cloud. We determine the requirements of microwave power and magnetic-field gradient to keep a resonant excitation. We find that there is a minimum microwave power required for the measurement. At high microwave powers, the relative precision in gravimetry (σg/g) approaches 10-7 in a single measurement, which is good enough for many field applications.

authors

• Gómez García Eduardo

publication date

• 2024-01-01

funding provided via

• COPOCYT, (23871); Mexican councils Consejo Potosino de Ciencia y Tecnologia; Consejo Nacional de Ciencia y Tecnología, CONACYT, (CF G40)  Grant

published in

• Physical Review A  Journal

keywords

• Atoms; Magnetic fields; Microwave generation; Atomic clouds; Cloud expansion; Counterpropagating; Magnetic field gradient; Microwave magnetics; Microwave power; Power fields; Precision limits; Resonant excitation; Scalings; Thermal expansion

Digital Object Identifier (DOI)

• 10.1103/PhysRevA.109.013304

PubMed ID

start page

end page

volume

• 109

issue

• 1