In the 18th century, the scientific world was drunk on Newtonian certainty. The universe was a clockwork mechanism, ...

Quantum theory and general relativity have long described the universe with incompatible languages, one speaking in ...

The prevailing assumption has been that Einstein's theory of gravity must be modified, or 'quantized', in order to fit within quantum theory. This is the approach of two leading candidates for a ...

An international collaboration sheds new light on the relationship between quantum theory and thermodynamics. The research group demonstrated that while the laws of quantum theory alone do not ...

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.

A null boundary carries a degenerate signature (0++) metric, which is obtained by taking the pull-back of the four-dimensional line element to the boundary. Credit: Classical and Quantum Gravity (2025 ...

Quantum theory fails to explain how the reality we experience emerges from the world of particles. A new take on quantum ...

Unifying gravity and quantum theory remains a significant goal in modern physics. Despite the success in unifying all other fundamental interactions (electromagnetism, strong force and weak force) ...

Physicists have used a quantum computer to simulate the first-ever holographic wormhole and transport information through it. The "baby" wormhole, created on Google's Sycamore 2 quantum computer was ...