My research spans the fields of theoretical quantum mechanics, quantum optics and quantum imformation. I am interested in fundamental issues of quantum physics and how they can be exploited in practical schemes and new technologies. Since my doctoral study, I have been working on the quantum effects of cavity optomechanical system, including squeezing, macroscopic entanglement, one-way quantum steering, phonon blockade, etc. With the experimental implementation of macroscopic entanglement between two mechanical oscillators, the quantum coherence effects involving multiple mechanical modes have become an important research topic in optomechanics. The dynamics of an array of optomechanical devices and how this can lead to multimode squeezed states and macroscopic entanglements are what I am going to explore. Due to the fact that the mechanical oscillator is easy to be coupled with different quantum subsystems, the cavity optomechanical system is suitable as a quantum network node. I also intend to explore the potential application of array of optomechanical devices in the field of quantum metrology and sensing.

Fujian Normal University: Fuzhou

2016-09-01 to 2019-07-01 | Doctor

Fuzhou University: Fuzhou

2008-09-01 to 2011-07-01 | Master 

Minnan Normal University: Zhangzhou

2003-08-01 to 2007-07-01 | Bachelor

Quantum information processing

College physics, College physics experiment, Fundamentals of quantum information technology

ZJGSU:

• Jia-Jia Wang, Yu-Hong He, Chang-Geng Liao*, Rong-Xin Chen†, Jacob A. Dunningham‡, Robustness of entanglement in a non-Hermitian cavity-optomechanical system even away from exceptional points, Phys. Rev. A 112, 013708 (2025).

• Yu-Hong He, Jia-Jia Wang, Li-Zhen Jiang, Chang-Geng Liao*, and Jacob A. Dunningham†,  Entanglement and asymmetric quantum steering in a nonlinear cavity-magnon system with two-fold periodic amplitude modulation, Phys. Scr. 100, 045102 (2025).

• Tian-Ang Zheng, Ye Zheng, Lei Wang，and Chang-Geng Liao*, Dissipative generation of significant amount of photon-phonon asymmetric steering in magnomechanical interfaces, EPJ Quantum Technol. 10, 19 (2023)

• Hong Xie, Le-Wei He, Chang-Geng Liao*, Zhi-Hua Chen, and Xiu-Min Lin†, Generation of robust optical entanglement in cavity optomagnonics, Opt. Express 31, 7994-8004 (2023).

• Chang-Geng Liao*, Xiao Shang, Hong Xie, and Xiu-Min Lin†, Dissipation-driven entanglement between two microwave fields in a four-mode hybrid cavity optomechanical system, Opt. Express 30, 10306-10316 (2022).

• Wei Lin, Chang-Geng Liao*, Phase dependence of the dynamical behaviours and photon entanglement induced by two-fold modulations in optomechanical interfaces, Pramana-J. Phys. 96, 66 (2022).

• Wei Lin, Chang-Geng Liao*, Enhancement of asymmetric steering via interference effects induced by twofold modulations in a cavity optomechanical system, Eur. Phys. J. Plus 136, 324 (2021).

• Chang-Geng Liao, Hong Xie, Rong-Xin Chen, Ming-Yong Ye*, and Xiu-Min Lin†, Controlling one-way quantum steering in a modulated optomechanical system, Phys. Rev. A 101, 032120 (2020).

  
  

Before ZJGSU:

• Chang-Geng Liao, Rong-Xin Chen, Hong Xie, Meng-Ying He, and Xiu-Min Lin*, Quantum synchronization and correlations of two mechanical resonators in a dissipative optomechanical system, Phys. Rev. A 99, 033818 (2019).

• Chang-Geng Liao, Rong-Xin Chen*, Hong Xie, and Xiu-Min Lin†, Reservoir-engineered entanglement in a hybrid modulated three-mode optomechanical system, Phys. Rev. A 97, 042314 (2018).

• Chang-Geng Liao, Hong Xie, Xiao Shang, Zhi-Hua Chen, and Xiu-Min Lin*, Enhancement of steady-state bosonic squeezing and entanglement in a dissipative optomechanical system, Opt. Express 26, 13783-13799 (2018).

• ……

  
  

Principal investigator:

(1) Coherent manipulation and basic application of hybrid quantum systems based on magnonics, Fundamental Research Funds for the Provincial Universities of Zhejiang (Grant No. XRK23006), 2024.01-2026.12：¥80000

(2) Manipulation of one-way quantum steering in dissipative cavity optomechanical systems, National

Natural Science Foundation of China (Grant No. 12004336), 2021.1-2023.12：¥240000

(3) Theory and applications of quantum effects in cavity optomechanical systems, the 2016 Annual College

Funds for Distinguished Young Scientists of Fujian Province of China (Grant No. JA16), 2016.5-2019.5：

¥60000

Co-Investigator:

(1) Entangled optomechanical oscillators as a tool for fundamental physics and sensing applications, International Exchanges 2022 Cost Share (NSFC)(Ref: IEC\NSFC\223131),2023.3-2025.3: £11,580.00

(2) Multi-party sharing of quantum operations or secrets using entangled mixed states or pure states as

quantum channels, National Natural Science Foundation of China (Grant No. 12075205), 2021.1-2024.12：

¥630000

(3) Secure multi-party quantum summation and its applications, National Natural Science Foundation of

China (Grant No. 62071430), 2021.1-2024.12：¥550000

(4) Quantum private query, Fundamental Research Funds for the Provincial Universities of Zhejiang,2021.09-2024.08