Over a decade ago, when I was first starting to pretend I could write about quantum mechanics, I covered a truly bizarre ...

For the first time, a team of physicists in Austria has carried out an experiment that appears to verify the principle of ...

The study of quantum gravity seeks a synthesis between quantum mechanics and general relativity, and Causal Dynamical Triangulations (CDT) has emerged as a promising nonperturbative approach. In CDT, ...

(via Sabine Hossenfelder) To us normal people, cause and effect are linked together in a distinct order. The cause occurs first, and the effect follows after. But according to a new paper, that causal ...

Physicists demonstrate indefinite causal order in quantum mechanics, challenging traditional cause-and-effect notions through ...

Within our comfortable world of causality we expect that reactions always follow an action and not vice versa. This why the recent chatter in the media about researchers having discovered ‘negative ...

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The theoretical physicist John Wheeler once used the phrase “great smoky dragon” to describe a particle of light going from a source to a photon counter. “The mouth of the dragon is sharp, where it ...

Causal Set Theory (CST) offers a compelling approach to reconciling quantum theory and general relativity by postulating that spacetime, at its most fundamental level, is discrete rather than ...