Fast quantum gas formation via electromagnetically induced transparency cooling

Wui Seng Leong^1,2,3*, Mingjie Xin³, Zilong Chen³, Yu Wang³, Shau-Yu Lan^1,2

¹Department of Physics, National Taiwan University, Taipei, Taiwan
²Center for Quantum Science and Engineering, National Taiwan University, Taipei, Taiwan
³School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, Singapore

* Presenter:Wui Seng Leong, email:leongwuiseng@phys.ntu.edu.tw

Ultracold quantum gas play a pivotal role as essential states of matter in many-body physics, quantum sensing, and quantum simulation. However, the construction of quantum gas requires time-consuming evaporative cooling in bulk ensembles, which generally takes from seconds to minutes. Here, we report the creation of a ⁸⁵Rb quantum gas by simply cooling individual atoms pinned in a three-dimensional optical lattice using electromagnetically induced transparency and adiabatic expansion. We demonstrate the generation of quantum gas through 10 ms time-scale cooling. This significant reduction in preparation time holds great potential for enhancing quantum gas applications.

Keywords: Electromagnetically induced transparency, Quantum gas, Fast cooling