and decoherence effects, as well as showing the transition from quantum to classical in the realm of multipartite entanglement. Our work has certified that quantum entanglement can be observed in a macroscopic room-temperature atomic ensemble with motional atoms and demonstrated the accessibility of feasible manipulations of entanglement depth, which greatly expanded the bound of operating large-scale multipartite entanglement and may have potential applications for future quantum information science and technologies.

Creating a larger-scale multipartite entanglement beyond billions of atoms is possible, a larger beam waist and stronger energy of light pulse will be helpful with the prerequisite of well controlled levels of noise. What’s more, the larger beam waist can mitigate the detrimental effect of decoherence brought by the thermal motions of atoms, since there is a broader space to prevent warm atoms from escaping from the interaction area, which leads to a longer lifetime of multipartite entanglement. Recent works also show that the anti-relaxation coating of vapor cell will preserve the coherence for longer time [@balaba_coating; @polsik_DLCZ], which may be beneficial for improving the maintenance of the heralded multipartite entanglement. Remarkably, recent proposals and experimental developments about transferring the single collective excitation of electronic spins to noble-gas nuclear spins 