Invariants-based shortcuts for fast generating Greenberger–Horne–Zeilinger state among three superconducting qubits

Xu Jing, Yu Lin, Wu Jin-Lei, Ji Xin^†

(color online) (a) Final fidelity versus and with . (b) Final fidelity versus and with . (c) Final fidelity versus and with . (d) Time dependence of the fidelity in the presence of three decoherence factors.