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Soft theorems in de Sitter spacetime

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arxiv 2308.08861 v2 pith:AORRPDIN submitted 2023-08-17 hep-th gr-qc

Pujian Mao , Kai-Yu Zhang This is my paper · ORCID
classification hep-thgr-qc
keywords softspacetimesittertheoremsflattheoremcorrespondingcosmological
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In this paper, we derive a soft photon theorem and a soft gluon theorem in the de Sitter spacetime from the Ward identity of the near cosmological horizon large gauge transformation. Taking the flat limit of the de Sitter spacetime, the soft theorems naturally recover the corresponding flat spacetime soft theorems.

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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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