2 papers
hep-th2021
Instability of cosmic Yang-Mills fields
Kaushlendra Kumar, Olaf Lechtenfeld, Gabriel Picanço Costa
There exists a small family of analytic SO(4)-invariant but time-dependent SU(2) Yang-Mills solutions in any conformally flat four-dimensional spacetime. These might play a role in…
hep-th2020
On rational electromagnetic fields
Kaushlendra Kumar, Olaf Lechtenfeld
We employ a recently developed method for constructing rational electromagnetic field configurations in Minkowski space to investigate several properties of these source-free finit…