Abstract
In this note, we discuss the bulk reconstruction of massless free fields in flat space from the highest-weight representation of boundary Carrollian conformal field theory (CCFT). We expand the bulk field as a sum of infinite descendants of a primary state defined in the boundary CCFT, and discuss the Lorentz invariant bulk-boundary propagator in detail for the BMS3/CCFT2 case. In our calculation, it is necessary to introduce a nonzero mass at the beginning and take it as vanishing at the end. The framework we proposed has the potential to probe local bulk physics from the boundary CCFT.
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Acknowledgments
We thank Pengxiang Hao, Reiko Liu, Haowei Sun and Yufan Zheng very much for their valuable discussions. This work is in part supported by NSFC Grant No. 12275004, 11735001.
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Chen, B., Hu, Z. Bulk reconstruction in flat holography. J. High Energ. Phys. 2024, 64 (2024). https://doi.org/10.1007/JHEP03(2024)064
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DOI: https://doi.org/10.1007/JHEP03(2024)064