| Issue |
EPL
Volume 136, Number 2, October 2021
|
|
|---|---|---|
| Article Number | 21002 | |
| Number of page(s) | 7 | |
| Section | The Physics of Elementary Particles and Fields | |
| DOI | https://doi.org/10.1209/0295-5075/ac419a | |
| Published online | 03 February 2022 | |
One-loop calculations in Lorentz-breaking theories and proper-time method
1 Universidade Federal do ABC, Centro de Ciências Naturais e Humanas - Av. dos Estados, 5001, 09210-580, Santo André, SP, Brazil
2 Centro de Ciências e Tecnologia, Universidade Federal do Cariri - 63048-080, Juazeiro do Norte, CE, Brazil
3 Departamento de Física, Universidade Federal do Maranhão - 65080-805, São Lus, MA, Brazil
4 Instituto de Física, Universidade Federal de Alagoas - 57072-900, Maceió, AL, Brazil
5 Departamento de Física, Universidade Federal da Paraíba - Caixa Posta 5008, 58051-970, João Pessoa, PB, Brazil
(a) petrov@fisica.ufpb.br (corresponding author)
Received: 4 October 2021
Accepted: 9 December 2021
We discuss applications of the proper-time method in various minimal Lorentz-violating modifications of QED and present new results obtained with its use. Explicitly we calculate the complete one-loop Heisenberg-Euler effective action involving all orders in 
, for two of the most studied minimal Lorentz-violating extensions of QED, the one characterized by the axial vector 
and the one involving the second-rank constant tensor 
.
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