2024/03/15 by Godwin Martin, Martin, Godwin, Shivam K. Sharma +1 · 1 citation
Physics and Astronomy · #Atomic and Subatomic Physics Research #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #Nuclear Physics and Applications
paper · pdf · doi:10.48550/arxiv.2403.10604
openalex publication_date 2024/03/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We initiate the study of an open EFT for finite-temperature holographic systems with interacting fermions. In particular, we do this for Yukawa interactions in the bulk using the real-time formalism (grSK geometry). From the bulk perspective, this study corresponds to Yukawa scattering against a black hole, incorporating the effects of Hawking radiation. We derive an EFT in the exterior of the black hole and thus develop a Witten diagrammatic understanding of the scattering processes. This allows the explicit evaluation of boundary Schwinger-Keldysh (SK) correlators to arbitrary order, at tree-level in the bulk. Here we present explicitly the SK generating functional up to four-point functions. Finally, we represent the correlators in a column-vector representation that manifests microscopic unitarity and thermality, with all the statistical factors neatly folded in.