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Soft theorems in curved spacetime

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arxiv 2206.11564 v3 pith:HKX6EM6I submitted 2022-06-23 hep-th gr-qc

Peng Cheng , Pujian Mao This is my paper · ORCID
classification hep-thgr-qc
keywords softhorizonspacetimeblackcurvedholenearphoton
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In this paper, we derive a soft photon theorem in the near horizon region of the Schwarzschild black hole from the Ward identity of the near horizon large gauge transformation. The flat spacetime soft photon theorem can be recovered as a limiting case of the curved spacetime. The soft photons on the horizon are indeed soft electric hairs. This accomplishes the triangle equivalence on the black hole horizon.

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Cited by 1 Pith paper

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  1. Scattering Hawking Radiation

    hep-th 2025-07 reject novelty 3.0 of 10

    The paper re-expresses the flat-space soft photon theorem in Schwarzschild coordinates and claims a new information pathway from scattering Hawking radiation, but the redshift premise is flawed.

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