Showing papers on "Four-tensor published in 1970"
TL;DR: In this article, it was concluded that Minkowski's and Abraham's tensors are equivalent in the usual physical cases, and moreover give a satisfactory description of the observable phenomena.
13 citations
TL;DR: In this paper, an equal-time commutation relation for the energy-momentum tensor tensor was derived using a method outlined in a previous paper, with no restrictions on the external gravitational field gμν that couples to the energy tensor.
Abstract: Using a method outlined in a previous paper, we derive an equal‐time commutation relation for the energy‐momentum tensor. We make no restrictions on the external gravitational field gμν that couples to the energy‐momentum tensor. As a special case of the equal‐time commutation relation derived, we obtain Schwinger's commutation relation for the energy density.
2 citations