Quantum theory and Einstein's theory of general relativity are two of the greatest successes in modern physics. Each works ...

Our universe plays by certain rules, which originate from different branches of physics. But sometimes the rules seem ...

Physicists have engineered photons that behave as if they inhabit a space far richer than the familiar three dimensions, ...

"Dark photon" theory says light's interference patterns may emerge from quantum particles, not waves, upending centuries of physics.

Physicists have long treated space and time as the stage on which quantum particles perform, not as actors in the drama ...

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

An international team of physicists has proven new theorems in quantum mechanics that describe the 'energy landscapes' of collections of quantum particles. Their work addresses decades-old questions, ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

Einstein’s claim that the speed of light is constant has survived more than a century of scrutiny—but scientists are still ...

There may be an infinite amount of energy locked in the vacuum of space-time. So could we ever harness this energy for anything useful? The idea of vacuum energy comes from quantum field theory, which ...

According to quantum mechanics, the physics theory that describes the zoo of subatomic particles, all matter can be described as both particles and waves. But is it real? When you purchase through ...