SAMOP 2021 – wissenschaftliches Programm

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SYAI: Symposium Trends in atom interferometry

SYAI 1: Trends in atom interferometry

SYAI 1.2: Hauptvortrag

Montag, 20. September 2021, 14:30–15:00, Audimax

Atom interferometry for advanced geodesy and gravitational wave observation — •Philippe Bouyer — LP2N, IOGS, CNRS, Univ. Bordeaux

In 2016, one century after Einstein predicted their existence, scientists made the first observation gravitationalwaves (GW). Since this first observation, many more events have been detected, confirming that GW opens a new window for studying the cosmos. There is today a growing interest in GW astronomy; The scientific potential of is enormous, in terms of providing a deep view into the past of our universe, and complement other observation windows such as radio telescopes or infrared observatory. The success of this new astronomy relies on our faculty to expand our observation frequency window to other frequencies. The Laser Interferometer Space Antenna (LISA) to investigate frequency sources at very low frequency gives a partial, long term answer to this challenge. Nevertheless, it leaves a large gap, the infrasound (mHz to tens of Hz) band, uncovered. An underground gravitational waveantenna can provide a quick response to this problem and would naturally complete and enhance the present and future set of GW observatories. MIGA is a long baseline, mid-frequency, GW observation infrastructure relying on quantum sensors technology to study space-time and gravitation. We will present the progress of this first step towards a Laboratory for Gravitation and Atom-interferometric Research in Europe.