刘永椿
副教授
清华大学物理系
理科楼B413
北京 100084
电话：
传真：
ycliu@tsinghua.edu.cn
个人网页：http://info.phys.tsinghua.edu.cn/coldquantum/

个人简历

学习经历：
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
工作经历：
2018/12-今 清华大学物理系 副教授
2017/01-2018/12 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40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、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
北京光学学会现代光学专业委员会委员、青年工作委员会委员

主要论著

已发表论文40多篇（包括5篇PRL），文章总引用1000多次，H因子为21，主持国家自然科学基金重大研究计划培育项目1项、面上项目1项，合作承担重大研究计划集成项目1项，受邀为PRL、PRA、PRB、OL、OE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.