Non-relativistic conformal field theory in momentum space

Abstract Non-relativistic conformal field theory describes many-body physics at unitarity. The correlation functions of the system are fixed by the requirement of the conformal invariance. In this article, we discuss the correlation functions of scalar operators in non-relativistic conformal field t...

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Main Authors: Rajesh Kumar Gupta, Meenu
Format: Article
Language:English
Published: SpringerOpen 2025-04-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-025-14119-8
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author Rajesh Kumar Gupta
Meenu
author_facet Rajesh Kumar Gupta
Meenu
author_sort Rajesh Kumar Gupta
collection DOAJ
description Abstract Non-relativistic conformal field theory describes many-body physics at unitarity. The correlation functions of the system are fixed by the requirement of the conformal invariance. In this article, we discuss the correlation functions of scalar operators in non-relativistic conformal field theories in momentum space. We discuss the solution of conformal Ward identities and express 2,3, and 4-point functions as a function of energy and momentum. We also express the 3- and 4-point functions as the one-loop and three-loop Feynman diagram computations in the momentum space. Lastly, we generalize the discussion to the momentum space correlation functions in the presence of a boundary.
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spelling doaj-art-ca2bddd3dcda4ad3bcc78629d44831442025-08-20T03:18:32ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522025-04-0185411210.1140/epjc/s10052-025-14119-8Non-relativistic conformal field theory in momentum spaceRajesh Kumar Gupta0Meenu1Department of Physics, Indian Institute of Technology RoparDepartment of Physics, Indian Institute of Technology RoparAbstract Non-relativistic conformal field theory describes many-body physics at unitarity. The correlation functions of the system are fixed by the requirement of the conformal invariance. In this article, we discuss the correlation functions of scalar operators in non-relativistic conformal field theories in momentum space. We discuss the solution of conformal Ward identities and express 2,3, and 4-point functions as a function of energy and momentum. We also express the 3- and 4-point functions as the one-loop and three-loop Feynman diagram computations in the momentum space. Lastly, we generalize the discussion to the momentum space correlation functions in the presence of a boundary.https://doi.org/10.1140/epjc/s10052-025-14119-8
spellingShingle Rajesh Kumar Gupta
Meenu
Non-relativistic conformal field theory in momentum space
European Physical Journal C: Particles and Fields
title Non-relativistic conformal field theory in momentum space
title_full Non-relativistic conformal field theory in momentum space
title_fullStr Non-relativistic conformal field theory in momentum space
title_full_unstemmed Non-relativistic conformal field theory in momentum space
title_short Non-relativistic conformal field theory in momentum space
title_sort non relativistic conformal field theory in momentum space
url https://doi.org/10.1140/epjc/s10052-025-14119-8
work_keys_str_mv AT rajeshkumargupta nonrelativisticconformalfieldtheoryinmomentumspace
AT meenu nonrelativisticconformalfieldtheoryinmomentumspace