Energy density and stress fields in quantum systems

Richard M. Martin, Nithaya Chetty, Dallas R. Trinkle

There has been an enduring interest and controversy about whether or not one can define physically meaningful energy density and stress fields, $e(\mathbf{r})$ and $\ddot{I}{ƒ}_{\hat{I}\pm {\hat{I}}^2}(\mathbf{r})$,…