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Large area interferometer based on ultracold strontium atoms
Large area interferometer based on ultracold strontium atoms
University of Birmingham - School of Physics and Astronomy
AION (Atom Interferometer Observatory and Network) is a proposed project gathering seven institutions to use ultra-cold strontium atoms to observe mid-range frequency gravitational waves and detect ultra-light dark matter.
My role in the consortium is focused on the large momentum transfer (LMT) for the interrogation. I wrote a programme to simulate the pulses fidelity function of numerous parameters and detailed the components needed and the cost.
The concept is published in JCAP 05, 011 (2020).
Simulation of sequential π -pulses to perform LMT with the strontium clock transition. On the left, the fidelity versus the cloud temperature for different LMT. On the right, the fidelity versus the momentum transfered for a cloud temperature of 100 nK.
Concept of the experiment, with two sources of ultra-cold strontium atoms prepared in side arms and then transferred in the main tube to be launched and interrogated with LMT.
Sensitivity area to mergers black holes for different actual and future instruments.
Miniature three axis cesium accelerometer
Miniature three axis cesium accelerometer
NASA - JPL
Work in progress...
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