Fig. 1. Structural diagram of model

Fig. 2. Evolution of entanglement in single-photon process. (a) Without consideration of change of coupling coefficients; (b) k=2; (c) p=1.2

Fig. 3. Evolution of entanglement in two-photon process. (a) Without consideration of change of coupling coefficient; (b) k=2; (c) p=1.2

Fig. 4. Evolution of quantum discord when coupling coefficient is constant. (a) Single-photon process; (b) two-photon process

Fig. 5. Evolution of quantum discord when p=1.2. (a) Single-photon process; (b) two-photon process

Fig. 6. Evolution of geometric quantum discord when coupling coefficient is constant. (a) Single-photon process; (b) two-photon process

Fig. 7. Evolution of geometric quantum discord when p=1.2. (a) Single-photon process; (b) two-photon process

Fig. 8. Evolution of quantum correlations in moving atom-field interaction model when p=1.2. (a) Single-photon process, constant coupling coefficient; (b) two-photon process, constant coupling coefficient; (c) single-photon process, linear change of coupling coefficient, k=2; (d) two-photon process, linear change of coupling coefficient, k=2