Equation 14.22.107A7369E544A8

\begin{equation} L\varphi :=\frac{\mathrm{dd}^{\mathrm{c}}\varphi \wedge T}{\mathrm{d}V} =\operatorname {Tr}(aD^2\varphi ),\qquad a=\frac1{8\pi } \begin{pmatrix} P_{\rm cf} & Q_{\rm cf} \\ -Q_{\rm cf} & P_{\rm cf} \end{pmatrix}. \end{equation}