| Issue |
EPL
Volume 116, Number 5, December 2016
|
|
|---|---|---|
| Article Number | 51001 | |
| Number of page(s) | 5 | |
| Section | The Physics of Elementary Particles and Fields | |
| DOI | https://doi.org/10.1209/0295-5075/116/51001 | |
| Published online | 27 January 2017 | |
(1 + 3)-D topological superconductors: Screening and confinement in the presence of external fields
1 Departmento de Física and Centro Científico-Tecnológico de Valparaíso, Universidad Técnica Federico Santa María Valparaíso, Chile
2 Centro Brasileiro de Pesquisas Físicas (CBPF) - Rio de Janeiro, RJ, Brasil
Received: 4 November 2016
Accepted: 10 January 2017
Adopting the gauge-invariant and path-dependent variables formalism, we compute the interaction energy for a topological field theory describing (1 + 3)-D topological superconductors in the presence of external fields. As a result, in the case of a constant electric-field strength expectation value, we show that the interaction energy describes a purely screening phase, encoded in a Yukawa potential. On the other hand, in the case of a constant magnetic-field strength and for a very small Josephson coupling constant, the particle-antiparticle binding potential displays a linear term leading to the confinement of static charge probes along with a screening contribution.
PACS: 14.70.-e – Gauge bosons / 12.60.Cn – Extensions of electroweak gauge sector / 13.40.Gp – Electromagnetic form factors
© EPLA, 2016
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