| Full text | |
| Author(s): |
Almeida, Caio
[1]
;
Alonso-Izquierdo, Alberto
[2, 3]
;
Fresneda, Rodrigo
[4]
;
Mateos Guilarte, Juan
[3, 5]
;
Vassilevich, Dmitri
[6, 4]
Total Authors: 5
|
| Affiliation: | [1] Univ Fed ABC, Grad Program Phys PPG FIS, BR-09210580 Santo Andre, SP - Brazil
[2] Univ Salamanca, Dept Matemat Aplicada, Salamanca 37008 - Spain
[3] Univ Salamanca, Inst Fis Fundamental & Matemat, IUFFyM, Salamanca 37008 - Spain
[4] CMCC Univ Fed ABC, BR-09210580 Santo Andre, SP - Brazil
[5] Univ Salamanca, Dept Fis Fundamental, Salamanca 37008 - Spain
[6] Tomsk State Univ, Phys Dept, Tomsk 634050 - Russia
Total Affiliations: 6
|
| Document type: | Journal article |
| Source: | Physical Review D; v. 103, n. 12 JUN 21 2021. |
| Web of Science Citations: | 0 |
| Abstract | |
We compute the vacuum fermion current in the (2 + 1) dimensional Jackiw-Rossi model by using the 1/m expansion. The current is expressed through a weighted eta-function with a matrix weight. In the presence of such a weight, the usual proof of topological nature of eta(0) is no longer applicable. Direct computations confirm the following surprising result; the fermion number induced by vortices in the Jackiw-Rossi model is not topological. (AU) | |
| FAPESP's process: | 16/03319-6 - Non perturbative methods in quantum theory and QFT and their application to actual physical problems |
| Grantee: | Dmitri Maximovitch Guitman |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 17/50294-1 - Quantum field theory in Dirac materials |
| Grantee: | Dmitry Vasilevich |
| Support Opportunities: | Regular Research Grants |