The counting of Nambu-Goldstone bosons in a non-Hermitian field theory
arXiv:1911.03230 · doi:10.1140/epjc/s10052-020-08434-5
Abstract
We demonstrate that the number of Nambu-Goldstone bosons is always equal to the number of conserved currents inside the scenario of non-Hermitian field theories with spontaneous symmetry breaking. This eliminates the redundancies which normally appears in Hermitian field theories, specifically when the Lagrangian under analysis violates explicitly the Lorentz symmetry.
Version published in EPJC