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On C-J and C-T in conformal QED

Author(s): Giombi, Simone; Tarnopolsky, Grigory; Klebanov, Igor R

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dc.contributor.authorGiombi, Simone-
dc.contributor.authorTarnopolsky, Grigory-
dc.contributor.authorKlebanov, Igor R-
dc.date.accessioned2017-11-21T19:35:45Z-
dc.date.available2017-11-21T19:35:45Z-
dc.date.issued2016-08en_US
dc.identifier.citationGiombi, Simone, Tarnopolsky, Grigory, Klebanov, Igor R. (2016). On C-J and C-T in conformal QED. JOURNAL OF HIGH ENERGY PHYSICS, 10.1007/JHEP08(2016)156en_US
dc.identifier.issn1029-8479-
dc.identifier.urihttp://arks.princeton.edu/ark:/88435/pr1k366-
dc.description.abstractQED with a large number N of massless fermionic degrees of freedom has a conformal phase in a range of space-time dimensions. We use a large N diagrammatic approach to calculate the leading corrections to C-T, the coefficient of the two- point function of the stress-energy tensor, and C-J, the coefficient of the two- point function of the global symmetry current. We present explicit formulae as a function of d and check them versus the expectations in 2 and 4 - epsilon dimensions. Using our results in higher even dimensions we find a concise formula for CT of the conformal Maxwell theory with higher derivative action F-mu nu (-V-2)F-d/2-2(mu nu). In d = 3, QED has a topological symmetry current, and we calculate the correction to its two- point function coefficient, C-J(top). We also show that some RG flows involving QED in d = 3 obey C-T(UV) > C-T(IR) and discuss possible implications of this inequality for the symmetry breaking at small values of N.en_US
dc.format.extent(2016)156-1 - (2016)156-22en_US
dc.language.isoenen_US
dc.relation.ispartofJOURNAL OF HIGH ENERGY PHYSICSen_US
dc.rightsFinal published version. This is an open access article.en_US
dc.titleOn C-J and C-T in conformal QEDen_US
dc.typeJournal Articleen_US
dc.identifier.doidoi:10.1007/JHEP08(2016)156-
dc.date.eissued2016-08-26en_US
pu.type.symplectichttp://www.symplectic.co.uk/publications/atom-terms/1.0/journal-articleen_US

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