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@ARTICLE{Ghosh:611508,
author = {Ghosh, Kausik and Kaviraj, Apratim and Paulos, Miguel F.},
title = {{P}olyakov blocks for the 1{D} conformal field theory
mixed-correlator bootstrap},
journal = {Physical review / D},
volume = {109},
number = {6},
issn = {2470-0010},
address = {Ridge, NY},
publisher = {American Physical Society},
reportid = {PUBDB-2024-04945, arXiv:2307.01257},
pages = {L061703},
year = {2024},
note = {Phys.Rev.D 109 (2024) 6, L061703. 6+7 pages, 4 figures,
Fig. 1 modified for clarity, minor corrections, further
explanations, and references added},
abstract = {We introduce manifestly crossing-symmetric expansions for
arbitrary systems of 1D CFT correlators. These expansions
are given in terms of certain Polyakov blocks which we
define and show how to compute efficiently. Equality of
operator product expansion and Polyakov block expansions
leads to sets of sum rules that any mixed correlator system
must satisfy. The sum rules are diagonalized by correlators
in tensor product theories of generalized free fields. We
show that it is possible to do a change of a basis that
diagonalizes instead mixed correlator systems involving
elementary and composite operators in a single field theory.
As an application, we find the first nontrivial examples of
optimal bounds, saturated by the mixed correlator system
ϕ,ϕ2 in the theory of a single generalized free field.},
keywords = {field theory: conformal (INSPIRE) / operator: composite
(INSPIRE) / correlation function (INSPIRE) / sum rule
(INSPIRE) / bootstrap (INSPIRE) / operator product expansion
(INSPIRE) / dimension: 1 (INSPIRE)},
cin = {T},
ddc = {530},
cid = {I:(DE-H253)T-20120731},
pnm = {611 - Fundamental Particles and Forces (POF4-611) / DFG
project 390833306 - EXC 2121: Quantum Universe (390833306) /
FUNBOOTS - Solving Conformal Field Theories with the
Functional Bootstrap (101043588)},
pid = {G:(DE-HGF)POF4-611 / G:(GEPRIS)390833306 /
G:(EU-Grant)101043588},
experiment = {EXP:(DE-MLZ)NOSPEC-20140101},
typ = {PUB:(DE-HGF)16},
eprint = {2307.01257},
howpublished = {arXiv:2307.01257},
archivePrefix = {arXiv},
SLACcitation = {$\%\%CITATION$ = $arXiv:2307.01257;\%\%$},
UT = {WOS:001195573300004},
doi = {10.1103/PhysRevD.109.L061703},
url = {https://bib-pubdb1.desy.de/record/611508},
}