First comes cause, then comes effect – or does it? This order of events has previously been upended in the quantum realm, with the possibility of both A-causes-B and B-causes-A happening ...

Bell's theorem, the well-known theoretical framework introduced by John Bell decades ago, delineates the limits of classical physical processes arising from relativistic causality principles. These ...

Physics has a problem—their key models of quantum theory and the theory of relativity do not fit together. Now, Dr. Wolfgang Wieland from Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) is ...

In the classical world, if you tried to charge a battery using two chargers, you would have to do so in sequence, limiting the available options to just two possible orders. However, leveraging the ...

The nature of light and photons reveals deep insights into spacetime, showing how they traverse without time, reshaping our ...

Quantum computers could gain an advantage over their conventional counterparts by bypassing the usual rules of cause and effect. “We were curious about how to push the limits of quantum computers, ...

Here’s what you’ll learn when you read this story: A new theory asks what’s “above” quantum physics in our physical world. Decoherence of quantum physics creates classical physics, suggesting that ...

The original version of this story appeared in Quanta Magazine. For the past few decades, researchers have understood that quantum computers should eventually be able to crack the widely used codes ...

Causal set theory proposes that spacetime is fundamentally composed of discrete elements ordered by a causal relation, replacing the smooth manifold of general relativity with a locally finite ...

Renate Loll has seen universes that would give Doctor Strange nightmares. She’s explored 3D worlds, flatlands and fractured realities with fractional dimensions. She’s seen universes with gentle ...

Faster-than-light particles have spent decades in physics as both temptation and warning. They offered a way to test the limits of Einstein’s relativity, but they also seemed to wreck the basic order ...

(Nanowerk News) Batteries that exploit quantum phenomena to gain, distribute and store power promise to surpass the abilities and usefulness of conventional chemical batteries in certain low-power ...