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High Energy Physics - Theory
Title: Conformal field theory with composite defect
(Submitted on 12 Apr 2024 (v1), last revised 25 Apr 2024 (this version, v2))
Abstract: We explore higher-dimensional conformal field theories (CFTs) in the presence of a conformal defect that itself hosts another sub-dimensional defect. We refer to this new kind of conformal defect as the composite defect. We elaborate on the various conformal properties of the composite defect CFTs, including correlation functions, operator expansions, and conformal block expansions. As an example, we present a free O(N) vector model in the presence of a composite defect. Assuming the averaged null energy condition (ANEC) does hold even for the defect systems, we conclude that some boundary conditions can be excluded. Our investigations shed light on the rich phenomenology arising from hierarchical defect structures, paving the way for a deeper understanding of critical phenomena in nature.
Submission history
From: Soichiro Shimamori [view email][v1] Fri, 12 Apr 2024 11:45:00 GMT (33kb)
[v2] Thu, 25 Apr 2024 04:05:20 GMT (33kb)
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