| Full text | |
| Author(s): |
Dudal, David
;
Mizher, Ana Julia
;
Pais, Pablo
Total Authors: 3
|
| Document type: | Journal article |
| Source: | Physical Review D; v. 99, n. 4, p. 7-pg., 2019-02-25. |
| 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 Opportunities: | Scholarships in Brazil - Post-Doctoral |