Bulk Reconstruction of Scalar Excitations in Flat$_3$/CCFT$_2$ and the Flat Limit from (A)dS$_3$/CFT$_2$

Peng-Xiang Hao; Kotaro Shinmyo; Yu-ki Suzuki; Shunta Takahashi; Tadashi Takayanagi

doi:10.1007/JHEP11(2025)054

paper

Bulk Reconstruction of Scalar Excitations in Flat $_{3}$ /CCFT $_{2}$ and the Flat Limit from (A)dS $_{3}$ /CFT $_{2}$

arXiv:2505.20084 · doi:10.1007/JHEP11(2025)054

Abstract

We explore the reconstruction of bulk local states in three-dimensional flat spacetime (Flat $_{3}$ ) using states from two-dimensional Carrollian conformal field theories (CCFT $_{2}$ ), proposed as dual field theories in one lower dimension. For massive scalar-type bulk excitations, reconstruction is achieved through states in the induced representation. This method successfully reproduces the bulk massive scalar spectrum and the bulk-to-bulk propagator. Additionally, we identify a new flat limit from AdS $_{3}$ and dS $_{3}$ spacetimes, further validating our proposal for scalar reconstruction in Flat $_{3}$ /CCFT $_{2}$ .

45 pages, 1 figure; published version (v3); note added(v4); eq.(2.55) corrected (v5)

Bulk Reconstruction of Scalar Excitations in Flat3​/CCFT2​ and the Flat Limit from (A)dS3​/CFT2​

Abstract

Cited by in corpus (3)

Bulk Reconstruction of Scalar Excitations in Flat $_{3}$ /CCFT $_{2}$ and the Flat Limit from (A)dS $_{3}$ /CFT $_{2}$