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.

Physicists tested the Greenberger–Horne–Zeilinger (GHZ) paradox, which is at the heart of quantum theory, to measure light ...

The idea of a particle that races faster than light has long fascinated physicists. Known as the tachyon, it was originally ...

Take, for instance, quantum entanglement, which says that the state of one particle can be determined by examining the state ...

Quantum mechanics is simultaneously beautiful and frustrating. Its explanatory power is unmatched. Armed with the machinery of quantum theory, we have unlocked the secrets of atomic power, divined ...

However, all attempts to blend general relativity and quantum physics necessarily introduce deviations from Einstein’s theory. Therefore, Einstein’s gravity cannot be the ultimate theory of ...

Without such a theory, physicists cannot reconcile our two most powerful theories, quantum field theory and general relativity. Quantum theory describes the world of the very small—tiny ...

Which countries are leading in quantum computing research in 2025? Explore global rankings by volume, quality, and impact in this fast-growing field.

(2024, December 6). A connection between quantum theory and information theory. ScienceDaily. Retrieved June 11, 2025 from www.sciencedaily.com / releases / 2024 / 12 / 241206161913.htm.

In this respect, it is similar to US physicist Hugh Everett III’s popular ‘many worlds’ interpretation of quantum mechanics, which proposes that the quantum Universe splits into different ...

With the help of a new experiment, researchers at Linköping University, among others, have succeeded in confirming a ten-year-old theoretical study, which connects one of the most fundamental ...