Quantum Physics

Physicists have found a way the theory might limit the cosmic inflation that is thought to have expanded the early universe

Ultracold atoms can simulate all sorts of quantum behavior

Anomalous motions of stars orbiting our galaxy’s central supermassive black hole might reveal the existence of long-hypothesized tunnels through spacetime

The theory, which emerged in the 1970s as a way to unify the fundamental forces of nature, has profoundly shaped the landscape of particle physics

A proposed experiment to swap fundamental properties between photons carries profound implications for our understanding of reality itself

The intuitive idea that objects influence each other because they are in physical proximity is soon to become another of those beliefs that turn out to be wrong when we look deeper

Physicists attempting to unify the theories of  gravity and quantum mechanics have long thought practical experiments were out of reach, but new proposals offer a chance to test the quantum nature of gravity on a tabletop

Stemming from the “F-theory” branch of string theory, each solution replicates key features of the standard model of particle physics

Recent experiments quash the hope that the unsettling phenomenon of quantum entanglement can be explained away

A recent experiment may have placed living organisms in a state of quantum entanglement

Some physicists claim that the popular landscape of universes in string theory may not exist

The universe according to quantum mechanics is strange and probabilistic, but our everyday reality seems nailed down. New experiments aim to probe where—and why—one realm passes into the other