While the electromagnetic, weak, and strong forces are described by the Standard Model of particle physics, gravity remains an outlier—resisting efforts to be fully explained by quantum theory.

A new physics paper takes a step toward creating a long-sought "theory of everything" by uniting gravity with the quantum world. However, the new theory remains far from being proven observationally.

Black hole and Big Bang singularities break our best theory of gravity. A trilogy of theorems hints that physicists must go ...

Quantum physics explains the behavior of tiny particles like atoms and photons. General relativity, on the other hand, describes how gravity shapes the universe through the bending of space and time.

A survey of more than 1,000 physicists finds deep disagreements in what quantum theories mean in the real world ...

Scientists uncovered universal laws of entanglement in any dimension. The results strengthen links between particle physics, quantum theory, and gravity. A group of theoretical physicists has shown th ...

The fourth, gravity, has always confounded quantum physics and prevented it from taking the crown as the final answer to fundamental physics.

String theory is perhaps the most high-profile candidate for what physicists call a theory of everything – a single ...

Researchers at Aalto University have developed a new quantum theory of gravity which describes gravity in a way that’s compatible with the Standard Model of particle physics, opening the ...

ETH Zurich scientists have levitated a tower of three nano glass spheres using optical tweezers, suppressing almost all ...

For decades, quantum physics and general relativity have stood as two powerful but separate theories. Quantum physics explains the behavior of tiny particles like atoms and photons.