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SUMMARY:Testing Fundamental Physics with laser-cooled Molecules
DTSTART:20260430T121500Z
DTEND:20260430T131500Z
DTSTAMP:20260424T172800Z
UID:indico-event-130@indico.zdv.uni-mainz.de
DESCRIPTION:Speakers: Michael Tarbutt (Imperial College London\, UK)\n\nTe
 sting fundamental physics with laser-cooled molecules\nOver the last decad
 e\, there has been rapid progress in laser cooling and trapping of polar m
 olecules. This progress has been driven by the many exciting applications 
 of ultracold molecules. They can be used to study many-body quantum physic
 s\, process quantum information and improve our understanding of chemical 
 processes at the quantum level. They can also be used to test physics beyo
 nd the Standard Model [1]. \nIn this talk\, I will first introduce our met
 hods for cooling and trapping polar molecules\, then describe how we use t
 hese ultracold molecules to probe fundamental physics. In one experiment\,
  we are developing a molecular lattice clock based on ultracold CaF molecu
 les and using it to test the hypothesis that the fundamental constants may
  vary in time. Our clock will be especially sensitive to variations of the
  electron-to-proton mass ratio [2]. In a second experiment\, we aim to use
  ultracold YbF molecules to measure the electron’s electric dipole momen
 t (EDM) with precision beyond the current state of the art [3]. The measur
 ement is a test of time-reversal symmetry violation and an extremely sensi
 tive probe of new physics\, including models of supersymmetry. I will pres
 ent the status of these experiments and our plans for future developments.
 \n[1] DeMille D\, Hutzler N R\, Rey A M and Zelevinsky T 2024 Nature Physi
 cs 20\, 741\n[2] Barontini G et al. 2022 EPJ Quantum Technol. 9\, 12\n[3] 
 Roussy T S et al. 2023 Science 381\, 46\n[4] Jenkins R A et al. 2026 arXiv
 :2602.00713\n\nhttps://indico.zdv.uni-mainz.de/event/130/
LOCATION:Lorentz (IPH)
URL:https://indico.zdv.uni-mainz.de/event/130/
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