The DAMNED experiment - Space-time separated clock experiment searching for ultralight scalar field

DArk Matter from Non Equal Delays” (DAMNED) is a new experiment that aims to check for space or time variation of physics fundamental constants through a space-time separated experiment running at the Paris Observatory. A three arms Mach-Zender experiment allows us to compare an ultra-stable cavity to itself in the past through the delay created by a multi kilometer long optical fiber. A massive scalar dark matter field (DM) would create oscillation in the fundamental constants therefore yielding modulation of our interferometer beatnote. Thanks to our setup, we aim to constrain a new combination of the DM coupling constants.


Jeudi, 26 mars, 2020 - 10:00 to 11:00

Localisation / Location: 


Salle / Local: 

  • Séminaire

Nom/Prénom // Last name/First name: 

Etienne Savalle


Observatoire de Paris

Equipe(s) organisatrice(s) / Organizing team(s): 

  • Gravitation

Pays / Country: