I received Ph.D. in Physics from Nanjing University of Aeronautics and Astronautics in March 2014. In the same year, I was awarded the MOU/non-MOU scholarship from the National Institute of Informatics (NII) in Japan and worked as a Visiting Researcher at NII. In 2015, I conducted postdoctoral research at the Institute of Physics, Chinese Academy of Sciences. From 2016 to 2018, I was a Research Scholar at the Ohio State University in the United States. From 2018 to 2021, I served as an Assistant Researcher at Zhejiang University in China. In December 2021, I joined Nanjing University of Aeronautics and Astronautics as an Associate Professor. My primary research focuses on theoretical studies of ultracold atomic physics and related interdisciplinary fields, including Bose-Einstein condensation, supersolids, superfluid Fermi gases, quantum thermodynamics, and the applications of machine learning in ultracold atomic physics.

Research highlights:

(1) Theoretical research on dynamical instabilities in binary dipolar superfluids [K.-T. Xi, T. Byrnes, and H. Saito, Phys. Rev. A 97, 023625 (2018)] (collaboration with Prof. Tim Byrnes at New York University Shanghai and Prof. Hiroki Saito at University of Electro-Communications), was selected as Editors' Suggestion and Featured in Physics, picture in the paper was selected in Kaleidoscope. This research was reported by main scientific medium:

      Physics by American Physical Society: Focus story: Video—Condensate Duo Puts on a Show;

      The Ohio State University: 'Frogs' and 'mushrooms' bubble up in quantum fluids;

      PhysOrg: 'Frogs' and 'mushrooms' bubble up in quantum fluids;

      Science Daily: 'Frogs' and 'mushrooms' bubble up in quantum fluids; 

(2) Proposed the first theoretical model [K.-T. Xi and H. Saito, Phys. Rev. A 93, 011604(R) (2016)] for the experiment on supersolidity in dipolar quantum droplets [H. Kadau et al., Nature 530,194 (2016)] (collaboration with Prof. Hiroki Saito at University of Electro-Communications);

Selected publications:

[1] Guitao Lyu, Kui-Tian Xi (共同一作/通讯作者), Sukjin Yoon, Qijin Chen, and Gentaro Watanabe, Exciting the long-lived Higgs mode in superfluid Fermi gases with particle removal, Phys. Rev. A 107, 023321 (2023) [Citations: 7];

[2] Kui-Tian Xi (通讯作者), Tim Byrnes, and Hiroki Saito, Fingering instabilities and pattern formation in a two-component dipolar Bose-Einstein condensate, Phys. Rev. A 97, 023625 (2018) [Citations: 36];

[3] Kui-Tian Xi (通讯作者) and Hiroki Saito, Droplet formation in a Bose-Einstein condensate with strong dipole-dipole interaction, Phys. Rev. A 93, 011604(R) (2016) [Citations: 87];

[4] Kui-Tian Xi, Jinbin Li, and Da-Ning Shi, Phase separation of a two-component dipolar Bose-Einstein condensate in the quasi-one-dimensional and quasi-two-dimensional regime, Phys. Rev. A 84, 013619 (2011) [Citations: 23].

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