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arXiv · gr-qc/0108018

A Conserved Bach Current

E. N. Glass
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Abstract

The Bach tensor and a vector which generates conformal symmetries allow a conserved four-current to be defined. The Bach four-current gives rise to a quasilocal two-surface expression for power per luminosity distance in the Vaidya exterior of collapsing fluid interiors. This is interpreted in terms of entropy generation.

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E. N. Glass. 2001-08-06. A Conserved Bach Current. https://doi.org/10.1088/0264-9381%2F18%2F18%2F312

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