Fast and high-fidelity generation of photonic Greenberger-Horne-Zeilinger states in circuit QED

Jingwei Chen,Guan-Hao Feng,Hong-Hao Zhang,L F Wei

Figure 3. Implementation of transition from: (a) and (b), $| g,g,g,0,0,0\rangle $ to $(| g,g,g,0,0,0\rangle +| a,g,g,0,0,0\rangle )/\sqrt{2};$ (c) and (d), $| e,g,g,0,0,0\rangle $ to $| g,g,g,1,0,0\rangle $.