Abstract
An experiment gave results inconsistent with the simplest alternative to quantum gravity, the semiclassical Einstein equations. This evidence supports (but does not prove) the hypothesis that a consistent theory of gravity coupled to quantized matter should also have the gravitational field quantized.
- Received 9 June 1981
DOI:https://doi.org/10.1103/PhysRevLett.47.979
©1981 American Physical Society