Strongly Correlated Quantum Gas Prepared by Direct Laser Cooling
Quantum Gases
2019-10-30 v1 Quantum Physics
Abstract
We create a one-dimensional strongly correlated quantum gas of Cs atoms with attractive interactions by direct laser cooling in 300~ms. After compressing and cooling the optically trapped atoms to the vibrational ground state along two tightly confined directions, the emergence of a non-Gaussian time-of-flight distribution along the third, weakly confined direction reveals that the system enters a quantum degenerate regime. We observe a strong reduction of two- and three-body spatial correlations and infer that the atoms are directly cooled into a highly correlated excited metastable state, known as a super-Tonks-Girardeau gas.
Keywords
Cite
@article{arxiv.1906.05334,
title = {Strongly Correlated Quantum Gas Prepared by Direct Laser Cooling},
author = {Pablo Solano and Yiheng Duan and Yu-Ting Chen and Alyssa Rudelis and Cheng Chin and Vladan Vuletić},
journal= {arXiv preprint arXiv:1906.05334},
year = {2019}
}