Zhen-Sheng Yuan
Manipulation of photons and cold atoms: towards scalable quantum information processing
Quantum information processing (QIP) based on linear optics and multi-photon entanglement has attained outstanding achievements. Currently, in order to realize scalable QIP it is necessary to integrate flying qubit (e.g. light) and stationary qubit (e.g. matter) as a whole dynamical system. Conversion method between photons and matters should be developed to implement such a system.
By manipulating photons and cold atomic ensembles [1], we demonstrated efficient conversion between photons and atomic spins [2,3], generation of entanglement between photons and atomic spins and realization of a quantum repeater node[4,5,6].
[1] S. Chen et al, Phys. Rev. Lett. 97, 173004 (2006).
[2] Y.-A. Chen et al, Nature Phys. 4, 103 (2008).
[3] B. Zhao et al, Nature Phys. 5, 95 (2009).
[4] H.-J. Briegel et al, Phys. Rev. Lett. 81, 5932 (1998).
[5] L.-M. Duan et al, Nature 414, 413 (2001).
[6] Z.-S Yuan et al, Nature 454, 1098 (2008).
