Ising BCFT from Fuzzy Hemisphere

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1. Verfasser: Dedushenko, Mykola
Format: Preprint
Veröffentlicht: 2024
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author Dedushenko, Mykola
author_facet Dedushenko, Mykola
contents We extend the recently introduced fuzzy sphere technique for the 3d Ising CFT to the case of boundary CFT (BCFT) using the fuzzy hemisphere. This allows to study conformal boundary conditions, and we investigate the three boundary universality classes of the 3d Ising CFT. These include the ordinary, extraordinary, and special boundary conditions. We identify the qualitative signatures of boundary conformal invariance, and in the cases of ordinary and extraordinary boundary conditions, obtain numerical estimates for the spectrum of low-lying boundary primaries. For the special boundary conditions, we are only able to see their qualitative features, while reliable estimates of the scaling dimensions of boundary primaries are left for the future work.
format Preprint
id arxiv_https___arxiv_org_abs_2407_15948
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Ising BCFT from Fuzzy Hemisphere
Dedushenko, Mykola
High Energy Physics - Theory
Statistical Mechanics
High Energy Physics - Lattice
We extend the recently introduced fuzzy sphere technique for the 3d Ising CFT to the case of boundary CFT (BCFT) using the fuzzy hemisphere. This allows to study conformal boundary conditions, and we investigate the three boundary universality classes of the 3d Ising CFT. These include the ordinary, extraordinary, and special boundary conditions. We identify the qualitative signatures of boundary conformal invariance, and in the cases of ordinary and extraordinary boundary conditions, obtain numerical estimates for the spectrum of low-lying boundary primaries. For the special boundary conditions, we are only able to see their qualitative features, while reliable estimates of the scaling dimensions of boundary primaries are left for the future work.
title Ising BCFT from Fuzzy Hemisphere
topic High Energy Physics - Theory
Statistical Mechanics
High Energy Physics - Lattice
url https://arxiv.org/abs/2407.15948