Cadabra
a field theory motivated approach to computer algebra

DiracBar

An accent representing the Dirac conjugation operation.
Declares an object to be the operator which applies the Dirac bar to a spinor, i.e. an operator which acts according to \begin{equation} \bar{\psi} = i \psi^\dagger \Gamma^0\,. \end{equation} For more information see e.g. sort_spinors or fierz.
Copyright © 2001-2017 Kasper Peeters
Questions? info@cadabra.science