Nonlocal advantage of quantum coherence in the black hole quantum atmosphere

The effect of Hawking radiation on nonlocal advantage of quantum coherence (NAQC) is investigated by considering the Hartle-Hawking temperature under the Schwarzschild space-time. We analyze the characteristics of NAQC in the physically accessible and inaccessible regions. It is found that the minimum value for NAQC is indeed corresponding to the peak of Hawking radiation in accessible regions. Owing to the Hawking effect, quantum resource for the accessible and inaccessible regions is redistributed, and the trade-off relation for the information flow is revealed in the black hole. Besides, we examined the influences of Hawking radius, the distance from the black hole center to particle and the Hartle-Hawking constant on NAQC. It indicates that the smaller Hartle-Hawking constant and larger Hawking radius leads to an increase of NAQC in the physically accessible system. In addition, the hierarchical relationship among various quantum resources is verified in the black hole. If NAQC is achieved in the accessible region, the systemic state must be entangled, steerable and Bell nonlocal. Our findings show that the signatures of quantum atmosphere can be detected via NAQC and it offers a valuable insight on understanding the origination of Hawking radiation.