1 Correction to: Eur. Phys. J. Plus (2022) 137:917 https://doi.org/10.1140/epjp/s13360-022-03111-w

In this article, various typography errors appeared in the equations throughout the article due to a latex compiler incompatibility.

The club symbol has been substituted by the correct latex symbol \(\dagger\) as a standard convention for the Hermitian conjugate of an operator.

The Hamiltonian H_D is defined but the symbol of a vector Greek alpha \(\vec{\alpha}\) that is used as a convention for representing a vector of the Dirac matrices was missing. It has been replaced in equations 13, 41, 43, 53 and 54.

The Latin diphtong \(\text{\ae}\) has been substituted with the usual convention of a vector Greek sigma \(\vec{\sigma}\) denoting the Pauli matrices. It has been replaced in equations 44, 45, 46, 48, 51 and 74.

The left side of equation 59 was missing. It has been restored.

The original article has been corrected.