Highly Influential

1. We prove a theorem that says, essentially, that it is impossible for an infinite slab to exist which absorbs, reflects, or transforms a fraction> 0 of the energy in weak gravitational waves. But it is (essentially) possible to make a 100% efficient emit-

@inproceedings{Smith2003FromTI,
title={From time-irreversibility in gravity to measurement in quantum mechanics},
author={Warren D. Smith},
year={2003}
}