Do gravitational waves carry energy-momentum and angular momentum?

TL;DR

This paper demonstrates that real gravitational waves inherently carry energy-momentum and angular momentum, using canonical superenergy and supermomentum tensors for proof.

Contribution

It provides a rigorous proof that gravitational waves with non-zero Riemann tensor always carry energy-momentum and angular momentum.

Findings

Real gravitational waves carry energy-momentum.

Real gravitational waves carry angular momentum.

Proof uses canonical superenergy tensors.

Abstract

In the paper we show that the real gravitational waves which have $R_{iklm}\not= 0$ always carry energy-momentum and angular momentum. Our proof uses canonical superenergy and supermomentum tensors for gravitational field.