At the turn of the century, it sounded as if string theory could give us big answers about the universe. Well… has it?

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) ...

The nature of gravity — and whether it can be reconciled with quantum mechanics — is one of the biggest mysteries in physics. Most researchers think that at a fundamental level, all phenomena follow ...

Foundational work During the 1930s, Matvej Bronštejn conducted the first in-depth study of quantum gravity, exposing its difference from quantum electrodynamics. Credit: G E Gorelik Reconciling ...

Quantum mechanics is our most successful physical theory. Created to account for atomic phenomena, it has a vast range of applications extending well beyond the atomic realm, from predicting the ...

“How quantum mechanics and gravity fit together is one of the most important outstanding problems in physics,” Kathryn Zurek, a theoretical physicist at the California Institute of Technology (Caltech ...

The original version of this story appeared in Quanta Magazine. Two blind spots torture physicists: the birth of the universe and the center of a black hole. The former may feel like a moment in time ...

During the 20th century, physicists introduced and refined string theory, a theoretical framework that promised to unite quantum mechanics and general relativity. Instead of point-like particles, ...

Quantum gravity remains one of the big missing pieces of a Grand Unified Theory that could bridge quantum field theory and general relativity. Knowing that quantum gravity solutions must resemble ...

ABSTRACT: We make more specific initial contributions of prior work w.r.t. Tokamaks, relic black holes, and a relationship between a massive graviton particle count and quantum number n, and also add ...