We aim to widen the range of quantum simulations with cold atoms, by investigating phenomena arising from the long-ranged dipolar interaction in reduced dimensionalities. We are operating a new experimental setup based on quantum gases of the highly magnetic Dysprosium atoms. This is a joint project between LENS and CNR-INO, Sezione di Pisa.

Broad Feshbach resonances in Dysprosium atoms

We have characterized the scattering properties of ultracold 162Dy atoms for magnetic fields between 6 and 30 G. In addition to the typical chaotic distribution of narrow Feshbach resonances in Lanthanides, we have discovered two rather isolated broad features. A characterization using the complementary measurements of losses, thermalization, anisotropic expansion and molecular binding energy points towards resonances of predominant s-wave character, with dimensionless strength s=0.5(3). Such resonances will ease the investigation of quantum phenomena relying on the interplay between dipole and contact interactions.

E. Lucioni, et al.
Dysprosium dipolar Bose-Einstein condensate with broad Feshbach resonances
Phys. Rev. A 97, 06060701(R) (2018)

Dy People

Francesca Famà
Master student
Alessandro Fregosi
Master student
Eleonora Lucioni
Research fellow
Luca Tanzi
Research fellow
Jacopo Catani
Permanent researcher
Silvia Gozzini
Permanent researcher
Massimo Inguscio
Permanent researcher
Andrea Fioretti
Permanent researcher
Carlo Gabbanini
Permanent researcher
Giovanni Modugno
Permanent researcher

Dy contacts

For further information, request of material, job opportunities, please contact:

Giovanni Modugno
(modugno@lens.unifi.it)

Dy funding