If his experiment with splitting photons actually works, says University of Washington physicist John Cramer, the next step will be to test for quantum "retrocausality." That's science talk for saying ...

In 2022, the physics Nobel prize was awarded for experimental work showing that the quantum world must break some of our fundamental intuitions about how the universe works. Many look at those ...

The article on retrocausality seems to be implying that John Cramer and others are on the verge of sending messages back in time (30 September, p 36). They are not. Retrocausality is a conceptual ...

Add Yahoo as a preferred source to see more of our stories on Google. In 2022, the physics Nobel prize was awarded for experimental work showing that the quantum world must break some of our ...