We report on the observation of Feshbach resonances in ultracold $^{6}\mathrm{Li}\text{\ensuremath{-}}^{164}\mathrm{Dy}$ mixtures, where $^{6}\mathrm{Li}$ atoms are respectively prepared in their three lowest spin states and $^{164}\mathrm{Dy}$ atoms are prepared in their lowest-energy state. We observe 21 interspecies scattering resonances over a magnetic-field range from 0 to 702 G using atom loss spectroscopy, three of which exhibit relatively broad widths. These broad resonances provide precise control over the interspecies interaction strength, enabling the study of strongly interacting effects in $^{6}\mathrm{Li}\text{\ensuremath{-}}^{164}\mathrm{Dy}$ mixtures. Additionally, we observe a well-isolated interspecies resonance at 700.1 G, offering a unique platform to explore novel impurity physics, where heavy dipolar $^{164}\mathrm{Dy}$ atoms are immersed in a strongly interacting Fermi superfluid of $^{6}\mathrm{Li}$ atoms.We report on the observation of Feshbach resonances in ultracold $^{6}\mathrm{Li}\text{\ensuremath{-}}^{164}\mathrm{Dy}$ mixtures, where $^{6}\mathrm{Li}$ atoms are respectively prepared in their three lowest spin states and $^{164}\mathrm{Dy}$ atoms are prepared in their lowest-energy state. We observe 21 interspecies scattering resonances over a magnetic-field range from 0 to 702 G using atom loss spectroscopy, three of which exhibit relatively broad widths. These broad resonances provide precise control over the interspecies interaction strength, enabling the study of strongly interacting effects in $^{6}\mathrm{Li}\text{\ensuremath{-}}^{164}\mathrm{Dy}$ mixtures. Additionally, we observe a well-isolated interspecies resonance at 700.1 G, offering a unique platform to explore novel impurity physics, where heavy dipolar $^{164}\mathrm{Dy}$ atoms are immersed in a strongly interacting Fermi superfluid of $^{6}\mathrm{Li}$ atoms.

Physical Review AFeb 26, 20257 citations

A Feshbach resonance in collisions between triplet ground-state molecules

Juliana Park, Yu‐Kun Lu, Alan O. Jamison +2 more

arXiv:2208.05557NatureFeb 1, 202351 citations

Strongly Interacting Fermi-Fermi Mixture of $^{161}$ Dy and $^{40}$ KStrongly Interacting Fermi-Fermi Mixture of $^{161}$Dy and $^{40}$K

Cornelis Ravensbergen, Elisa Soave, Vincent Le Corre +4 more

We report on the realization of a Fermi-Fermi mixture of ultracold atoms that combines mass imbalance, tunability, and collisional stability. In an optically trapped sample of $^{161}$ Dy and $^{40}$ K, we identify a broad Feshbach resonance centered at a magnetic field of 218 $\,$ G. In the strongly interacting regime, we demonstrate hydrodynamic behavior in the expansion after release from the trap. Lifetime studies on resonance show that the fermionic nature of the system suppresses inelastic few-body processes by several orders of magnitude. The resonant mixture opens up intriguing perspectives for studies on novel states of strongly correlated fermions with mass imbalance.We report on the realization of a Fermi-Fermi mixture of ultracold atoms that combines mass imbalance, tunability, and collisional stability. In an optically trapped sample of $^{161}$Dy and $^{40}$K, we identify a broad Feshbach resonance centered at a magnetic field of 218$\,$G. In the strongly interacting regime, we demonstrate hydrodynamic behavior in the expansion after release from the trap. Lifetime studies on resonance show that the fermionic nature of the system suppresses inelastic few-body processes by several orders of magnitude. The resonant mixture opens up intriguing perspectives for studies on novel states of strongly correlated fermions with mass imbalance.

Sep 8, 20190 citations

A Quantum Model of Feshbach Resonances

Raffaele Carlone, M. Correggi, D. Finco +1 more

arXiv:1901.08282Annales Henri PoincaréJun 4, 20193 citations

Search for Feshbach Resonances in Ultracold Atomic Collisions

Jacob Roberts, N. R. Claussen, Carl Wieman

APSMay 1, 19980 citations

We report on the observation of Feshbach resonances in ultracold $^{6}\mathrm{Li}\text{\ensuremath{-}}^{164}\mathrm{Dy}$ mixtures, where

^{6}\mathrm{Li}

atoms are respectively prepared in their three lowest spin states and

^{164}\mathrm{Dy}

atoms are prepared in their lowest-energy state. We observe 21 interspecies scattering resonances over a magnetic-field range from 0 to 702 G using atom loss spectroscopy, three of which exhibit relatively broad widths. These broad resonances provide precise control over the interspecies interaction strength, enabling the study of strongly interacting effects in $^{6}\mathrm{Li}\text{\ensuremath{-}}^{164}\mathrm{Dy}$ mixtures. Additionally, we observe a well-isolated interspecies resonance at 700.1 G, offering a unique platform to explore novel impurity physics, where heavy dipolar

^{164}\mathrm{Dy}

atoms are immersed in a strongly interacting Fermi superfluid of

^{6}\mathrm{Li}

atoms.

Strongly Interacting Fermi-Fermi Mixture of

^{161}

Dy and

^{40}

We report on the realization of a Fermi-Fermi mixture of ultracold atoms that combines mass imbalance, tunability, and collisional stability. In an optically trapped sample of

^{161}

Dy and

^{40}

K, we identify a broad Feshbach resonance centered at a magnetic field of 218

\,

G. In the strongly interacting regime, we demonstrate hydrodynamic behavior in the expansion after release from the trap. Lifetime studies on resonance show that the fermionic nature of the system suppresses inelastic few-body processes by several orders of magnitude. The resonant mixture opens up intriguing perspectives for studies on novel states of strongly correlated fermions with mass imbalance.