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Title: Weight shifting operators and conformal blocks

Abstract

We introduce a large class of conformally-covariant differential operators and a crossing equation that they obey. Together, these tools dramatically simplify calculations involving operators with spin in conformal field theories. As an application, we derive a formula for a general conformal block (with arbitrary internal and external representations) in terms of derivatives of blocks for external scalars. In particular, our formula gives new expressions for “seed conformal blocks” in 3d and 4d CFTs. We also find simple derivations of identities between external-scalar blocks with different dimensions and internal spins. We comment on additional applications, including deriving recursion relations for general conformal blocks, reducing inversion formulae for spinning operators to inversion formulae for scalars, and deriving identities between general 6j symbols (Racah-Wigner coefficients/“crossing kernels”) of the conformal group.

Authors:
 [1];  [2];  [3]
  1. International School for Advanced Studies (SISSA) and Italian National Inst. of Nuclear Physics (INFN), Trfieste (Italy)
  2. California Inst. of Technology (CalTech), Pasadena, CA (United States). Water Burke Inst. for Theoretical Physics
  3. California Inst. of Technology (CalTech), Pasadena, CA (United States). Water Burke Inst. for Theoretical Physics; Inst. for Advanced Study, Princeton, NJ (United States). School of Natural Sciences
Publication Date:
Research Org.:
Institute for Advanced Study, Princeton, NJ (United States); California Institute of Technology (CalTech), Pasadena, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
OSTI Identifier:
1502431
Grant/Contract Number:  
SC0009988; SC0011632
Resource Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2018; Journal Issue: 2; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Conformal and W Symmetry; Conformal Field Theory; Space-Time Symmetries

Citation Formats

Karateev, Denis, Kravchuk, Petr, and Simmons-Duffin, David. Weight shifting operators and conformal blocks. United States: N. p., 2018. Web. doi:10.1007/jhep02(2018)081.
Karateev, Denis, Kravchuk, Petr, & Simmons-Duffin, David. Weight shifting operators and conformal blocks. United States. https://doi.org/10.1007/jhep02(2018)081
Karateev, Denis, Kravchuk, Petr, and Simmons-Duffin, David. Wed . "Weight shifting operators and conformal blocks". United States. https://doi.org/10.1007/jhep02(2018)081. https://www.osti.gov/servlets/purl/1502431.
@article{osti_1502431,
title = {Weight shifting operators and conformal blocks},
author = {Karateev, Denis and Kravchuk, Petr and Simmons-Duffin, David},
abstractNote = {We introduce a large class of conformally-covariant differential operators and a crossing equation that they obey. Together, these tools dramatically simplify calculations involving operators with spin in conformal field theories. As an application, we derive a formula for a general conformal block (with arbitrary internal and external representations) in terms of derivatives of blocks for external scalars. In particular, our formula gives new expressions for “seed conformal blocks” in 3d and 4d CFTs. We also find simple derivations of identities between external-scalar blocks with different dimensions and internal spins. We comment on additional applications, including deriving recursion relations for general conformal blocks, reducing inversion formulae for spinning operators to inversion formulae for scalars, and deriving identities between general 6j symbols (Racah-Wigner coefficients/“crossing kernels”) of the conformal group.},
doi = {10.1007/jhep02(2018)081},
journal = {Journal of High Energy Physics (Online)},
number = 2,
volume = 2018,
place = {United States},
year = {2018},
month = {2}
}

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Cited by: 31 works
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Long multiplet bootstrap
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Superintegrability of $d$-Dimensional Conformal Blocks
text, January 2016


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text, January 2009


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text, January 2010


Central Charge Bounds in 4D Conformal Field Theory
text, January 2010


Bounds in 4D Conformal Field Theories with Global Symmetry
text, January 2010


Solving the 3D Ising Model with the Conformal Bootstrap
text, January 2012


Projectors, Shadows, and Conformal Blocks
text, January 2012


Conformal Regge theory
text, January 2012


The Bootstrap Program for Boundary CFT_d
text, January 2012


Bootstrapping Conformal Field Theories with the Extremal Functional Method
text, January 2012


Bootstrapping the 3d Ising twist defect
text, January 2013


Bootstrapping Mixed Correlators in the 3D Ising Model
text, January 2014


Bounds on OPE Coefficients in 4D Conformal Field Theories
text, January 2014


Bootstrapping phase transitions in QCD and frustrated spin systems
text, January 2014


Conformal correlators of mixed-symmetry tensors
text, January 2014


Deconstructing Conformal Blocks in 4D CFT
preprint, January 2015


Bootstrapping 3D Fermions
text, January 2015


Witten Diagrams Revisited: The AdS Geometry of Conformal Blocks
text, January 2015


Scalar-Vector Bootstrap
text, January 2015


Causality Constraints in Conformal Field Theory
text, January 2015


Conformal Collider Physics from the Lightcone Bootstrap
text, January 2015


Towards Bootstrapping QED$_3$
text, January 2016


Seed Conformal Blocks in 4D CFT
text, January 2016


Superintegrability of $d$-dimensional Conformal Blocks
text, January 2016


A Proof of the Conformal Collider Bounds
text, January 2016


Crossing symmetry and Higher spin towers
text, January 2016


Radial expansion for spinning conformal blocks
text, January 2016


A Stereoscopic Look into the Bulk
text, January 2016


Quantum Integrable Systems from Conformal Blocks
text, January 2016


Harmony of Spinning Conformal Blocks
text, January 2016


Analyticity in Spin in Conformal Theories
text, January 2017


Conformal Bootstrap in the Regge Limit
text, January 2017


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journal, July 2018

  • Isachenkov, Mikhail; Schomerus, Volker
  • Journal of High Energy Physics, Vol. 2018, Issue 7
  • DOI: 10.1007/jhep07(2018)180

Exact correlation functions in conformal fishnet theory
journal, August 2019

  • Gromov, Nikolay; Kazakov, Vladimir; Korchemsky, Gregory
  • Journal of High Energy Physics, Vol. 2019, Issue 8
  • DOI: 10.1007/jhep08(2019)123

Harmonic analysis and mean field theory
journal, October 2019

  • Karateev, Denis; Kravchuk, Petr; Simmons-Duffin, David
  • Journal of High Energy Physics, Vol. 2019, Issue 10
  • DOI: 10.1007/jhep10(2019)217

Light-ray operators in conformal field theory
journal, November 2018

  • Kravchuk, Petr; Simmons-Duffin, David
  • Journal of High Energy Physics, Vol. 2018, Issue 11
  • DOI: 10.1007/jhep11(2018)102

Recursion relation for general 3d blocks
journal, December 2019

  • Erramilli, Rajeev S.; Iliesiu, Luca V.; Kravchuk, Petr
  • Journal of High Energy Physics, Vol. 2019, Issue 12
  • DOI: 10.1007/jhep12(2019)116

An introduction to the SYK model
journal, July 2019

  • Rosenhaus, Vladimir
  • Journal of Physics A: Mathematical and Theoretical, Vol. 52, Issue 32
  • DOI: 10.1088/1751-8121/ab2ce1

The conformal bootstrap: Theory, numerical techniques, and applications
journal, January 2019


Universality at large transverse spin in defect CFT
text, January 2018

  • Lemos, Madalena; Liendo, Pedro; Meineri, Marco
  • Deutsches Elektronen-Synchrotron, DESY, Hamburg
  • DOI: 10.3204/pubdb-2018-03901

A spacetime derivation of the Lorentzian OPE inversion formula
journal, July 2018

  • Simmons-Duffin, David; Stanford, Douglas; Witten, Edward
  • Journal of High Energy Physics, Vol. 2018, Issue 7
  • DOI: 10.1007/jhep07(2018)085

Universality at large transverse spin in defect CFT
journal, September 2018

  • Lemos, Madalena; Liendo, Pedro; Meineri, Marco
  • Journal of High Energy Physics, Vol. 2018, Issue 9
  • DOI: 10.1007/jhep09(2018)091

Scalar CFTs and their large N limits
journal, September 2018


Veneziano amplitude of Vasiliev theory
journal, October 2018

  • Turiaci, Gustavo J.; Zhiboedov, Alexander
  • Journal of High Energy Physics, Vol. 2018, Issue 10
  • DOI: 10.1007/jhep10(2018)034

From spinning conformal blocks to matrix Calogero-Sutherland models
text, January 2018


From Spinning Conformal Blocks to Matrix Calogero-Sutherland Models
text, January 2017


Integrability of conformal blocks. Part I. Calogero-Sutherland scattering theory
text, January 2018


Spheres, Charges, Instantons, and Bootstrap: A Five-Dimensional Odyssey
text, January 2017


Integrability of Conformal Blocks I: Calogero-Sutherland Scattering Theory
text, January 2017


Scalar CFTs and Their Large N Limits
text, January 2017


Scalar-Fermion Analytic Bootstrap in 4D
preprint, January 2017


Light-ray operators in conformal field theory
text, January 2018


The Conformal Bootstrap: Theory, Numerical Techniques, and Applications
text, January 2018