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@ARTICLE{Barrat:582303,
author = {Barrat, Julien and Liendo, Pedro and van Vliet, Philine},
title = {{L}ine defect correlators in fermionic {CFT}s},
reportid = {PUBDB-2023-01928, DESY-23-055. arXiv:2304.13588.
HU-EP-23/10-RTG},
year = {2023},
note = {44 pages, ancillary Mathematica notebook},
abstract = {Scalar-fermion models, such as the Gross-Neveu-Yukawa
model, admit natural $1d$ defects given by the exponential
of a scalar field integrated along a straight line. In
$4-\varepsilon$ dimensions the defect coupling is weakly
relevant and the setup defines a non-trivial interacting
defect CFT. In this work we study correlation functions on
these defect CFTs to order $\varepsilon$. We focus on $1d$
correlators constrained to the line, which include canonical
operators like the displacement and the one-dimensional
analog of the spin field. These results give access to
perturbative CFT data that can be used as input in the
numerical bootstrap. We also consider local operators
outside the line, in particular two-point functions of
scalars whose dynamics are non-trivial due to the presence
of the defect.},
keywords = {field theory, conformal (INSPIRE) / operator, local
(INSPIRE) / two-point function, scalar (INSPIRE) /
dimension, 1 (INSPIRE) / field theory, scalar (INSPIRE) /
defect (INSPIRE) / correlation function (INSPIRE) /
bootstrap (INSPIRE) / spin (INSPIRE)},
cin = {T},
cid = {I:(DE-H253)T-20120731},
pnm = {611 - Fundamental Particles and Forces (POF4-611) / DFG
project 400570283 - Das Conformal Bootstrap Programm
(400570283)},
pid = {G:(DE-HGF)POF4-611 / G:(GEPRIS)400570283},
experiment = {EXP:(DE-MLZ)NOSPEC-20140101},
typ = {PUB:(DE-HGF)25},
eprint = {2304.13588},
howpublished = {arXiv:2304.13588},
archivePrefix = {arXiv},
SLACcitation = {$\%\%CITATION$ = $arXiv:2304.13588;\%\%$},
doi = {10.3204/PUBDB-2023-01928},
url = {https://bib-pubdb1.desy.de/record/582303},
}