Bibliography

Education:

Teaching

Research

Research fields: Quantum optics, Quantum information, precision measurement physics

Research focus: Based on the mechanical oscillator, atomic ensemble and other experimental systems, we carry out theoretical and experimental research on the preparation, manipulation and application of quantum states.

Research platform:

1. Cavity Photomechanics Experimental Platform

(1) Laser cooling of macroscopic mechanical oscillators.

(2) Preparation and manipulation of squeezed and entangled states of light and mechanical resonators.

(3) Quantum simulation and quantum computation based on cavity optomechanical system.

(4) High-sensitivity optomechanical magnetometry.

2. Atomic ensemble experimental platform

(1) Preparation and manipulation of atomic spin squeezed and entangled states.

(2) Precision measurements beyond the standard quantum limits.

(3) Quantum manipulation based on atomic ensembles.

(4) High-sensitivity atomic magnetometry.

Awards

2022 "Academic Newcomer Award" of Tsinghua University (the highest academic honor for young teachers at Tsinghua University, 10 per year throughout the university)

2021 Young Changjiang Scholar (China Ministry of Education)

2021 Jinde Research Award of Department of Physics, Tsinghua University

2019 Rao Yutai Fundamental Optics Award

Awards before 2017 include: SPIE Optics and Photonics Education Scholarship, Wang Daheng Optics Award (Chinese Optical Society), “Ten Outstanding Scholar” Prize of Peking University, Grand Prize of Baosteel Education Award, etc

Selected Publications

Yong-Chun Liu has published over 80 papers, including 10 in Physical Review Letters (first or corresponding author). The total citation is over 3400 times, with an H-index of 34.

1. Chao Liang, Yuanjiang Tang, An-Ning Xu, Yong-Chun Liu*, Observation of Exceptional Points in Thermal Atomic Ensembles, Phys. Rev. Lett. 130, 263601 (2023) (Editors’suggestion, Physics Viewpoint).

2. Yuanjiang Tang, Chao Liang, Xin Wen, Weipeng Li, An-Ning Xu, and Yong-Chun Liu*, PT-Symmetric Feedback Induced Linewidth Narrowing, Phys. Rev. Lett. 130, 193602 (2023).

3. Wei Ji, Weipeng Li, Pavel Fadeev, Filip Ficek, Jianan Qin, Kai Wei*, Yong-Chun Liu*, and Dmitry Budker, Constraints on spin-spin velocity-dependent interactions, Phys. Rev. Lett. 130, 133202 (2023).

4. Yaohua Li, Chao Liang, Chenyang Wang, Cuicui Lu, and Yong-Chun Liu*, Gain-Loss-Induced Hybrid Skin-Topological Effect, Phys. Rev. Lett. 128, 223903 (2022) (ESI highly cited paper).

5. Xinyao Huang, Cuicui Lu, Chao Liang, Honggeng Tao, and Yong-Chun Liu*, Loss induced nonreciprocity, Light: Science & Applications 10, 30 (2021).

6. Long-Gang Huang, Feng Chen, Xinwei Li, Yaohua Li, Rong Lü, and Yong-Chun Liu*, Dynamic synthesization of extreme spin squeezing, npj Quantum Information 7, 168 (2021).

7. Bei-Bei Li*, Lingfeng Ou, Yuechen Lei and Yong-Chun Liu*, Cavity optomechanical sensing, Nanophotonics 10, 2799 (2021).

8. Yong-Chun Liu^#, Kun Huang^#, Yun-Feng Xiao, Lan Yang*, Cheng-Wei Qiu*, “What limits limits?”, National Science Review 8, nwaa210 (2021).

9. Chao Liang, Bei Liu, An-Ning Xu, Xin Wen, Cuicui Lu, Keyu Xia, Meng Khoon Tey, Yong-Chun Liu*, and Li You, “Collision-Induced Broadband Optical Nonreciprocity, Phys. Rev. Lett. 125, 123901 (2020).

10. Fan Yang, Yong-Chun Liu*, and Li You*, “Atom-Photon Spin-Exchange Collisions Mediated by Rydberg Dressing, Phys. Rev. Lett. 125, 143601 (2020).

11. Jing-Hui Gan, Yong-Chun Liu*, Cuicui Lu, Xiao Wang, Meng Khoon Tey, Li You, “Intracavity-squeezed optomechanical cooling”, Laser & Photonics Review 13, 1900120 (2019).

12. Feng Chen, Jun-Jie Chen, Ling-Na Wu, Yong-Chun Liu*, and Li You*, “Extreme Spin Squeezing from Deep Reinforcement Learning”, Phys. Rev. A (Rapid Communications) 100, 041801 (R) (2019).

13. Pai Peng, Yong-Chun Liu, Da Xu, Qi-Tao Cao, Guowei Lu, Qihuang Gong, and Yun-Feng Xiao*, “Enhancing coherent light-matter interactions through microcavity-engineered plasmonic resonances”, Phys. Rev. Lett. 119, 233901 (2017).

14. Yong-Chun Liu*, Bei-Bei Li*, and Yun-Feng Xiao*, Electromagnetically induced transparency in optical microcavities, Nanophotonics 6, 789 (2017). (Invited Review)

15. Yong-Chun Liu and Yun-Feng Xiao, Macroscopic mechanical systems are entering the quantum world, National Science Review 2, 9 (2015). (Invited Perspective).

16. Yong-Chun Liu, Xingsheng Luan, Hao-Kun Li, Qihuang Gong, Chee Wei Wong*, and Yun-Feng Xiao*, “Coherent polariton dynamics in coupled highly dissipative cavities”, Phys. Rev. Lett. 112, 213602 (2014).

17. Yong-Chun Liu, Yun-Feng Xiao*, You-Ling Chen, Xiao-Chong Yu, and Qihuang Gong*, “Parametric down-conversion and polariton pair generation in optomechanical systems”, Phys. Rev. Lett. 111, 083601 (2013).

18. Yong-Chun Liu, Yun-Feng Xiao*, Xingsheng Luan, and Chee Wei Wong*, “Dynamic dissipative cooling of a mechanical oscillator in strong coupling optomechanics”, Phys. Rev. Lett. 110, 153606 (2013).

19. Yun-Feng Xiao*, Yong-Chun Liu* Bei-Bei Li, You-Ling Chen, Yan Li, and Qihuang Gong*, “Strongly enhanced light-matter interaction in a hybrid photonic-plasmonic resonator”, Phys. Rev. A (Rapid Communications) 85, 031805(R) (2012).

20. Yong-Chun Liu, Yun-Feng Xiao*, Bei-Bei Li, Xue-Feng Jiang, Yan Li, and Qihuang Gong*, “Coupling of a single diamond nanocrystal to a whispering-gallery microcavity: photon transportation benefitting from Rayleigh scattering”, Phys. Rev. A (Rapid Communications) 84, 011805(R) (2011).

21. Yong-Chun Liu, Zhi-Fang Xu, Guang-Ri Jin, and Li You, “Spin squeezing: transforming one-axis-twisting into two-axis-twisting”, Phys. Rev. Lett. 107, 013601 (2011).