A Conserved Bach Current

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.

to appear in Class. Quantum Grav

References in corpus (3)

• Canonical Quasilocal Energy and Small Spheres
• New vacuum solutions of conformal Weyl gravity
• Radiation flux and spectrum in the Vaidya collapse model

Cited by in corpus (1)

• Exploring the holographic principle in asymptotically flat spacetimes via the BMS group