Abstract
The IR finiteness of \( \mathcal{S} \)-matrix in flat spacetime is tied to the Faddeev-Kulish dressed state, which suggests dressing the Fock space scattering state with the soft photon modes. We instigate a construction for the Faddeev-Kulish dressed state in the language of AdS/CFT. A salient feature of AdS spacetime is that it acquits itself as a quintessential IR regulator. The IR divergences will take shape after taking the zoomed in limit. We explore the Faddeev-Kulish dressed state to account for the AdS radius corrections. The Wilson line dressing stands as a guiding principle in the study of AdS radius-corrected Faddeev-Kulish dressing. We construct the modes of the Wilson line dressed massive scalar field implementing vanilla HKLL reconstruction since the field is simply free field. This simplification is owing to the use of soft photon modes in the Wilson line dressing. We map the AdS radius-corrected soft photon modes in terms of CFT current operators. We invert this mapping, use the mapping in the Wilson line dressing, and express the AdS radius-corrected Faddeev-Kulish dressed state.
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Acknowledgments
I would especially like to thank Eliot Hijano for useful discussions, and collaboration in the earlier work. I also thank Joydeep Chakravarty, Sangmin Choi, Hofie Sigridar Hannesdottir, Chethan Krishnan, Priyadarshi Paul, Suvrat Raju, Iain Stewart, Becher Thomas, and definately Nava Gaddam, Daniel Kabat, Alok Laddha, R. Loganayagam, Pronobesh Maity, Henry Maxfield, Jyotirmoy Mukherjee, Pabitra Ray, and Omkar Shetye for correspondence, helpful discussions throughout various stages of the work, and related collaborations. I gratefully acknowledge support from the grant of the Department of Atomic Energy, Government of India, under project no. RTI4001.
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Duary, S. AdS correction to the Faddeev-Kulish state: migrating from the flat peninsula. J. High Energ. Phys. 2023, 79 (2023). https://doi.org/10.1007/JHEP05(2023)079
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DOI: https://doi.org/10.1007/JHEP05(2023)079