Simultaneous Precision Gravimetry and Magnetic Gradiometry with a Bose-Einstein Condensate: A High Precision, Quantum Sensor
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Hardman, Kyle
Everitt, Patrick
McDonald, Gordon
Perumbil, Manju
Wigley, Paul
Sooriyabandara, Mahasen
Noschang Kuhn, Carlos
Debs, John
Close, John
Robins, Nicholas
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American Physical Society
Abstract
A Bose-Einstein condensate is used as an atomic source for a high precision sensor. A 5×106 atom F=1 spinor condensate of Rb87 is released into free fall for up to 750 ms and probed with a T=130 ms Mach-Zehnder atom interferometer based on Bragg transitions. The Bragg interferometer simultaneously addresses the three magnetic states |mf=1,0,−1⟩, facilitating a simultaneous measurement of the acceleration due to gravity with a 1000 run precision of Δg/g=1.45×10−9 and the magnetic field gradient to a precision of 120 pT/m.
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Physical Review Letters
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Open Access
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