D topological superconductors: screening and confinement in presence of external fields
arXiv:1611.01398 · doi:10.1209/0295-5075/116/51001
Abstract
Adopting the gauge-invariant and path-dependent variables formalism, we compute the interaction energy for a topological field theory describing D topological superconductors in 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.
6 pages