Liu Qiu

Liu Qiu
Early Stage Researcher

Academic background


Doctoral Assistant in Laboratory of Photonics and Quantum Measurements, EPFL
– Topic: Fock state generation in cavity optomechanical systems.
– Supervisor: Prof. Tobias Kippenberg (Laboratory of Photonics and Quantum Measurements,EPFL)

Sept. 2010 – July 2013

Master in Optics in Institute of Physics, Chinese Academy of Sciences(IOP,CAS), China
– Thesis: Quantum states manipulation in hybrid quantum photonic systems
– Supervisor: Prof. Zhiyuan Li (Key Laboratory of Optical Physics,IOP,CAS)

Nov. 2012 – Feb. 2013

Summer Research in Laboratory of Quantum Optics at University of Queensland, Australia

May. 2006 – July 2010

Bachelor of Science in Condensed Matter Physics, Nanjing University, China,
– Thesis: “Magnetic plasmon in coupled nanosandwich structure”
– Supervisor: Prof. Shining Zhu (Dielectric Superlattice Laboratory in National Microstructure Laboratory, Nanjing University)

Current research topic (PhD)

We will use the radiation pressure optomechanical coupling between a mechanical oscillator and an optical cavity field to generate in a heralded way a single quantum of mechanical motion (a Fock state).  The nonclassical nature of this mechanical state can be finally demonstrated by applying a readout laser on the lower sideband to map the phononic state to a photonic mode and performing an autocorrelation measurement. We will design, fabricate and measure the optomechanical system for fock state generation.


1. Liu Qiu, Lin Gan, Wei Ding, Zhiyuan Li
“Single photon state generation by pulsed laser in optomechanical system via photon blockade effect”, J. Opt. Soc. Am. B. 30, 001683(2013)
2. Liu Qiu, Ke Zhang, Zhiyuan Li
“Spontaneous emission of two quantum dots in a single-mode cavity”, Chin. Phys. B. 22, 094207(2013)
3. Liu Qiu, Shuming Wang, Hui Liu, Tao Li, Shining Zhu, and Xiang Zhang
“Magnetic plasmon in coupled nanosandwich structure”, J. Opt. Soc. Am. B 28, 1655(2011)