Can I read State selective cooling of $\mathrm{SU}(N)$ Fermi-gases on EtoBox?

State selective cooling of $\mathrm{SU}(N)$ Fermi-gases by Müller, Aaron Merlin; Lajkó, Miklós; Schreck, Florian; Mila, Frédéric; Minář, Jiří is a scholarly article available to read on EtoBox.

What is State selective cooling of $\mathrm{SU}(N)$ Fermi-gases about?

We investigate a species selective cooling process of a trapped $\mathrm{SU}(N)$ Fermi gas using entropy redistribution during adiabatic loading of an optical lattice. Using high-temperature expansion of the Hubbard model, we show that when a subset $N_A < N$ of the single-atom levels experiences a stronger trapping potential in a certain region of space, the dimple, it leads to improvement in cooling as compared to a $\mathrm{SU}(N_A)$ Fermi gas only. We show that optimal performance is achieved when all atomic levels experience the same potential outside the dimple and we quantify the cooling for various $N_A$ by evaluating the dependence of the final entropy densities and temperatures as functions of the initial entropy. Furthermore, considering ${}^{87}{\rm Sr}$ and ${}^{173}{\rm Yb}$ for specificity, we provide a quantitative discussion of how the state selective trapping can be achieved with readily available experimental techniques.

Author

Müller, Aaron Merlin; Lajkó, Miklós; Schreck, Florian; Mila, Frédéric; Minář, Jiří

Published

2021

Language

EN