(a) The fidelity of state transfer versus κ/g and γ/g in the coupled cavity system; (b) the fidelity of entangled state preparation versus κ/g and γ/g in the coupled cavity system; (c) the fidelity of state transfer versus κ/g and γ/g in the cavity–fiber–cavity system; (d) the fidelity of entangled state preparation versus κ/g and γ/g in the cavity–fiber–cavity system. In Figs. 11(a) and 11(b), the related parameters used for state transfer and entangled state the preparation are the same as those used in Fig. 5. In Figs. 11(c) and 11(d), the related parameters used for state transfer and entangled state preparation are the same as those used in Fig. 9.