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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Exact quantum scale invariance of three-dimensional reduced QED theories

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Author(s):
Dudal, David [1, 2] ; Mizher, Ana Julia [3, 2] ; Pais, Pablo [2, 4]
Total Authors: 3
Affiliation:
[1] Univ Ghent, Dept Phys & Astron, Krijgslaan 281-S9, B-9000 Ghent - Belgium
[2] KU Leuven Campus Kortrijk Kulak, Dept Phys, Etienne Sabbelaan 53 Bus 7657, B-8500 Kortrijk - Belgium
[3] Univ Estadual Paulista, Inst Fis Teor, Rua Dr Bento Teobaldo Ferraz, 271 Bloco 2, BR-01140070 Sao Paulo, SP - Brazil
[4] Charles Univ Prague, Fac Math & Phys, V Holesovickach 2, Prague 18000 8 - Czech Republic
Total Affiliations: 4
Document type: Journal article
Source: Physical Review D; v. 99, n. 4 FEB 25 2019.
Web of Science Citations: 1
Abstract

An effective quantum field theory description of graphene in the ultrarelativistic regime is given by reduced quantum electrodynamics (QED) also known as pseudo QED also known as mixed-dimensional QED. It has been speculated in the literature that reduced QED constitutes an example of a specific class of hard-to-find theories: an interacting conformal field theories (CFT) in more than two dimensions. This speculation was based on two-loop perturbation theory. Here, we give a proof of this feature, namely the exact vanishing of the beta-function, thereby showing that reduced QED can effectively be considered as an interacting (boundary) CFT, underpinning recent work in this area. The argument, valid for both two-and four-component spinors, also naturally extends to an exactly marginal deformation of reduced QED, thence resulting in a nonsupersymmetric conformal manifold. The latter corresponds to boundary layer fermions between two different dielectric half-spaces. (AU)

FAPESP's process: 16/12705-7 - Magnetic fields in heavy ion collisions: effects on obserbables
Grantee:Ana Júlia Silveira Mizher
Support type: Scholarships in Brazil - Post-Doctorate