Lucia Hackermueller (Nottingham): Non-equilibrium molecule association in lithium-6 revealing the onset of degeneracy

Donnerstag, 13. April 2023 14:00

Ort: Ernst-Mach-Hörsaal, Boltzmanngasse 5, 2. Stock

We study non-equilibrium association of Li2 Feshbach molecules over a range of temperatures T ≫ TF to T ≪ TF. We observe an enhancement of the atom-molecule coupling efficiency as the fermionic atoms reach degeneracy demonstrating the importance of manybody coherence not captured by the conventional LZ model [1]. We develop and detail a theoretical model that can explain the temperature dependence of the atom-molecule coupling and use it to predict a shortcut to adiabaticity in molecular association efficiency. I will also report on our recent results of a microscopic atom-photon interface [2], our 3D-printed elements for quantum technologies including 3D-printed UHV chambers and miniature 3D-printed vapour cells.

[1] V. Naniyil et al., "Observation of collectivity enhanced magnetoassociation of 6Li in the quantum degenerate regime", New J. Phys. 24 113005 (2022).
[2] E. da Ros et al., "Cold atoms in micromachined waveguides: a new platform for atomphoton interaction ", Phys. Rev. Res. 2, 033098 (2020).


Ernst-Mach-Hörsaal, Boltzmanngasse 5, 2. Stock

Foto: Barbara Mair