刘永椿 

    助理教授 

 

    清华大学物理系

    理科楼

    北京 100084 

 

    电话:010-62783582

    传真:010-62781604

    ycliu@mail.tsinghua.edu.cn

 

    个人主页:http://info.phys.tsinghua.edu.cn/coldquantum/

个人简历

教育经历:
2010/09-2015/07北京大学物理学院博士
2006/09-2010/07北京交通大学理学院本科
研究经历:
2017/01-今清华大学物理系助理教授
2015/08-2017/01中国空间技术研究院钱学森空间技术实验室副研究员
2012/10-2013/07美国哥伦比亚大学机械工程系访问研究

研究领域

研究领域为量子光学与微纳光子学,近年来致力于光力学(optomechanics)、腔量子电动力学(cavity QED)、光学微腔、自旋压缩等方向的研究,在PRL、PRA等期刊发表论文30多篇。目前的主要研究兴趣为光力学理论与应用,研究宏观/介观机械振动系统中的量子特性及其操控,并将其应用于力、位移、加速度、磁场等物理量的精密测量与量子信息处理中。
欢迎博士后、访问学者、研究生、本科生来此交流,常年不定期招收博士后研究人员,每年拟招收1~2名博士生并接纳2~4名本科生参加科研,感兴趣的同学可随时Email联系(ycliu@tsinghua.edu.cn)。

奖励、荣誉和学术兼职

SPIE (国际光学工程学会) Optics and Photonics Education Scholarship、World Quantitative and Science Scholarship、中国光学学会王大珩光学奖、北京大学优秀博士学位论文奖、北京大学“学术十杰”、北京市优秀毕业生、宝钢教育奖特等奖

 

学术兼职
钱学森空间技术实验室兼职研究员
北京光学学会青年工作委员会委员

主要论著

截至2017年1月,已发表论文30多篇,包括4篇PRL(第一作者),2篇PRA Rapid Communications,1篇National Science Review,文章总引用800多次,H因子为16,主持国家自然科学基金面上项目1项,受邀为PRL、PRA、PRB、OL、OE、EPL、CPB等期刊审稿人。

 

Selected publications:
1. 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).
2. 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).
3. Yong-Chun Liu, Yun-Feng Xiao, Xingsheng Luan, and Chee Wei Wong, Dynamic Dissipative Cooling of a Mechanical Resonator in Strong Coupling Optomechanics, Phys. Rev. Lett. 110, 153606 (2013).
4. 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).
5. 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 transport benefitting from Rayleigh scattering, Phys. Rev. A (Rapid Commun.) 84, 011805(R) (2011). 
6. Yong-Chun Liu and Yun-Feng Xiao, Macroscopic mechanical systems are entering the quantum world, National Science Review 2, 9 (2015). (Invited)
7. Yong-Chun Liu, Yun-Feng Xiao, Xingsheng Luan, Qihuang Gong, and Chee Wei Wong, “Coupled cavities for motional ground-state cooling and strong optomechanical coupling”, Phys. Rev. A 91, 033818 (2015).
8. Yong-Chun Liu, Rui-Shan Liu, Chun-Hua Dong, Yan Li, Qihuang Gong, and Yun-Feng Xiao, “Cooling mechanical resonators to quantum ground state from room temperature”, Phys. Rev. A 91, 013824 (2015). 
9. Yong-Chun Liu, Yu-Feng Shen, Qihuang Gong, and Yun-Feng Xiao, Optimal limits of cavity optomechanical cooling in the strong-coupling regime, Phys. Rev. A 89, 053821 (2014). 
10. Yong-Chun Liu, Yun-Feng Xiao, Xue-Feng Jiang, Yan Li, and Qihuang Gong, Cavity-QED treatment of scattering-induced free-space excitation and collection in high-Q whispering-gallery microcavities, Phys. Rev. A 85, 013843 (2012).
11. Yong-Chun Liu, Guang-Ri Jin, and Li You, Quantum-limited metrology in the presence of collisional dephasing, Phys. Rev. A 82, 045601 (2010). 
12. Yong-Chun Liu, Yu-Wen Hu, Chee Wei Wong and Yun-Feng Xiao, Review of cavity optomechanical cooling, Chin. Phys. B 22, 114213 (2013). (Invited)
13. Yong-Chun Liu, Yun-Feng Xiao, Xingsheng Luan, Qihuang Gong, and Chee Wei Wong, “Optomechanically-induced-transparency cooling of massive mechanical resonators to the quantum ground state”, Sci. China-Phys. Mech. Astron. 58, 050305 (2015). (Invited)
14. 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 Commun.) 85, 031805(R) (2012).   
15. Hao-Kun Li, Yong-Chun Liu, Xu Yi, Chang-Ling Zou, Xue-Xin Ren, and Yun-Feng Xiao, Proposal for a near-field optomechanical system with enhanced linear and quadratic coupling, Phys. Rev. A 85, 053832 (2012).  
16. Xiao-Chong Yu, Yong-Chun Liu, Meng-Yuan Yan, Wei-Liang Jin, and Yun-Feng Xiao, Coupling of diamond nanocrystals to a high-Q whispering-gallery microresonator, Phys. Rev. A 86, 043833 (2012). 
17. Xi Chen, Yong-Chun Liu, Pai Peng, Yanyan Zhi, and Yun-Feng Xiao, Cooling of macroscopic mechanical resonators in hybrid atom-optomechanical systems, Phys. Rev. A 92 , 033841 (2015) . 
18. Guang-Ri Jin, Yong-Chun Liu and Wu-Ming Liu, Spin squeezing in a generalized one-axis twisting model, New J. Phys. 11, 073049 (2009). 
19. Cuicui Lu, Yong-Chun Liu, Xiaoyong Hu, Hong Yang, and Qihuang Gong, Integrated ultracompact and broadband wavelength demultiplexer based on multi-component nano-cavities, Scientific Reports 6, 27428 (2016).
20. Yong-Chun Liu, Bei-Bei Li and Yun-Feng Xiao, Electromagnetically induced transparency in optical microcavities, Nanophotonics (2017), in press. (Invited)

 

Book chapters:
1. Zhang-qi Yin, Yong-Chun Liu and Yun-Feng Xiao, Nonclassical light sources and frequency converters with integrated opto-mechanical systems, book chapter in “Integrated nanophotonic resonators: fundamentals, devices and applications”, Pan Stanford Publishing Pte. Ltd. Singapore, 2015.