Quantum field theory with indefinite metric, from planar models in condensed matt...
| Full text | |
| Author(s): |
Obispo, Angel E.
;
Cruz Neto, Francisco A.
;
Jiron Vicente, Andres G.
;
Castro, L. B.
Total Authors: 4
|
| Document type: | Journal article |
| Source: | PHYSICAL REVIEW B; v. 102, n. 20, p. 4-pg., 2020-11-03. |
| Abstract | |
In a recent paper [Phys. Rev. B 97, 075135 (2018)], Menezes et al. analyze the topological behavior of an effective bosonic model defined on the Lieb lattice in the presence of an electromagnetic field. In this context, the authors claim to have found an atypical quantum Hall effect for the quasiparticles. However, some inconsistencies related to the treatment of the propagator jeopardize the main result in this system. (AU) | |
| FAPESP's process: | 18/20577-4 - Studies on fermions and bosons in low dimensions and their applications in graphene and topological insulators |
| Grantee: | Antonio Soares de Castro |
| Support Opportunities: | Research Grants - Visiting Researcher Grant - Brazil |