Experimental realization of ultracold Yb-${}^7\mathrm{Li}$ mixtures in mixed dimensions

Abstract

We report on the experimental realization of ultracold ${}^{174}\mathrm{Yb}$-${}^7\mathrm{Li}$ (Boson-Boson) and ${}^{173}\mathrm{Yb}$-${}^7\mathrm{Li}$ (Fermion-Boson) mixtures. They are loaded into three dimensional (3D) or one dimensional (1D) optical lattices that are species-selectively deep for the heavy Ytterbium (Yb) and shallow for the light bosonic Lithium (Li) component, realizing novel mixed dimensional systems. In the 1D optical lattice the band structure of ${}^{173}\mathrm{Yb}$ is reconstructed in the presence of ${}^7\mathrm{Li}$. Spectroscopic measurements of the ${}^{174}\mathrm{Yb}$-${}^7\mathrm{Li}$ mixture in the 3D lattice give access to the ${}^{174}\mathrm{Yb}$ Mott-insulator structure. Ground state inter-species scattering lengths are determined to be $|a_{\mathrm{bg}}{(}^{174}\mathrm{Yb}$-${}^7\mathrm{Li})|=(1.11\pm 0.17)\mathrm{nm}$ and $|a_{\mathrm{bg}}{(}^{173}\mathrm{Yb}$-${}^7\mathrm{Li})|=(1.16\pm 0.18)\mathrm{nm}$. The formation and characterization of an ultracold ${}^{173}\mathrm{Yb}$-${}^7\mathrm{Li}$ mixture is a first step towards a possible realization of a topological $p_x+i{p}_y$ superfluid in this system.

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Cited by in corpus (23)

• Tools for quantum simulation with ultracold atoms in optical lattices
• Induced $p$-wave pairing in Bose-Fermi mixtures
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• Quantum mixtures of ultracold gases of neutral atoms
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• Mixed bubbles in Bose-Bose mixtures
• Realization of a quantum degenerate mixture of highly magnetic and nonmagnetic atoms
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• Insulator phases of a mixture of spinor fermions and hard-core bosons
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• Detecting chiral pairing and topological superfluidity using circular dichroism
• Bound-state spectrum of an impurity in a quantum vortex
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• Confinement-Induced Resonance with Weak Background Interaction
• Long-Range Order and Quantum Criticality in a Dissipative Spin Chain
• Insulator phases of Bose-Fermi mixtures induced by intraspecies next-neighbor interactions
• Ground-state phase diagram of two-component interacting bosons on a two-leg ladder
• Feshbach resonances of large mass-imbalance Er-Li mixtures
• Quantum Degenerate Mixtures of Cs and Yb
• Effect of mediated interactions on a Hubbard chain in mixed-dimensional fermionic cold atoms