A problem of zero-mass scalar fields coupled to the gravitational field in the static, spherically symmetric case, is completely solved for a traceless energy-momentum tensor. Among the solutions is one with a conformally flat and asymptotically flat metric with total energy equal to the Schwarzschild mass.

On the energy-momentum tensor of light in strong elds: … 2017-6-12 · energy-momentum tensor of the eld this becomes (see for example44,45), = H F 1 4 H F : (2) The Minkowski form is not explicitly symmetric, which is typically thought to be a requirement of energy-momentum tensors to ensure that angular momentum is conserved, and also is … Łopuszański : The connection between the energy … Comm. Math. Phys. Volume 38, Number 4 (1974), 317-330. The connection between the energy-momentum tensor and the tensor field in presence of a mass gap

## 2015-1-27 · A traceless conserved energy-momentum tensor obeys the equations QQy V VVy Q (10) which imply that the energy flux along any null ray must be constant; i.e., radiation cannot be created or destroyed. In what follows, we therefore adopt the following expression for T,„: (We have normalized t" to f f'=+1.) The leading divergent term is present

2015-1-27 · A traceless conserved energy-momentum tensor obeys the equations QQy V VVy Q (10) which imply that the energy flux along any null ray must be constant; i.e., radiation cannot be created or destroyed. In what follows, we therefore adopt the following expression for T,„: (We have normalized t" to f f'=+1.) The leading divergent term is present Energy-momentum tensor of the electromagnetic field The U.S. Department of Energy's Office of Scientific and Technical Information Energy-momentum tensor of the electromagnetic field (Journal Article) | OSTI.GOV skip to main content

### 2006-2-3 · The right-hand side of Eq. represents the rate per unit volume at which energy is transferred from the electromagnetic field to charged particlesIt is clear, therefore, that Eq. is an energy conservation equation for the electromagnetic field (see Sect. 8.2)The proper-3-scalar can be identified as the energy density of the electromagnetic field, whereas the proper-3-vector is the energy flux

The right-hand side represents the rate per unit volume at which momentum is transferred from the electromagnetic field to charged particles. The symmetric proper-3-tensor specifies the flux of electromagnetic momentum parallel to the th axis crossing a surface normal to the th axis. If a eld theory has a conserved, traceless energy momentum tensor, it is invariant both under general coordinate transformations and Weyl transformations. Suppose the action has the form S= Z ddxL(@ x;g (x);˚(x)) : (1.9) Here ˚denotes generically any eld that might appear, except for the metric which we