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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.)

Remarks on the Chern-Simons photon term in the QED description of graphene

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Dudal, David [1, 2] ; Mizher, Ana Julia [3, 1] ; Pais, Pablo [1, 4]
Total Authors: 3
[1] Katholieke Univ Leuven, Dept Phys, Campus Kortrijk Kulak, B-8500 Kortrijk - Belgium
[2] Univ Ghent, Dept Phys & Astron, Krijgslaan 281-S9, B-9000 Ghent - 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, CR-18000 Prague 8 - Czech Republic
Total Affiliations: 4
Document type: Journal article
Source: Physical Review D; v. 98, n. 6 SEP 10 2018.
Web of Science Citations: 4

We revisit the Coleman-Hill theorem in the context of reduced planar QED. Using the global U(1) Ward identity for this nonlocal but still gauge-invariant theory, we can confirm that the topological piece of the photon self-energy at zero momentum does not receive further quantum corrections apart from the potential one-loop contribution, even when considering the Lorentz-noninvariant case due to the Fermi velocity v(F) < c. This is of relevance to probe possible time parity odd dynamics in a planar sheet of graphene which has an effective description in terms of (2 + 1)-dimensional planar reduced QED. (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