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Transdimensional defects

delete2025-08-25
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OA
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E
Elia de Sabbata
N
Nadav Drukker
A
Andreas Stergiou *
DOI:10.1007/JHEP08(2025)187delete
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Abstract

Abstract

En 中文
This note introduces a novel paradigm for conformal defects with continuously adjustable dimensions. Just as the standard ε expansion interpolates between integer spacetime dimensions, a new parameter, δ, is used to interpolate between different integer-dimensional defects. This framework is explored in detail for defects of dimension p = 2 + δ in both free and interacting O(N) bulk conformal field theories (CFTs) in d = 4 – ε. Comprehensive calculations are performed to first and second order in ε and to high or all orders in δ. Additionally, in the large-N limit, the interpolation between defects of dimensions p = 1 and p = 2 is analysed for spacetime dimensions 4 ⩽ d ⩽ 6. The new parameter δ provides a natural enrichment of the space of defect CFTs and allows to find new integer dimension or co-dimension defects.
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Journal

Journal of High Energy Physics cover
Journal of High Energy Physics
IF:
5.5
Papers:
3.9W
Citations:
13.7W

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D
Department of Mathematics
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università del piemonte orientale
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