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arXiv · 1906.05334

Strongly Correlated Quantum Gas Prepared by Direct Laser Cooling

Pablo Solano·Yiheng Duan·Yu-Ting Chen·Alyssa Rudelis·Cheng Chin·Vladan Vuletić
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Abstract

We create a one-dimensional strongly correlated quantum gas of $^{133}$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.

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Pablo Solano, Yiheng Duan, Yu-Ting Chen, Alyssa Rudelis, Cheng Chin, Vladan Vuletić. 2019-06-12. Strongly Correlated Quantum Gas Prepared by Direct Laser Cooling. https://doi.org/10.1103/physrevlett.123.173401

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