Light is usually described using quantum mechanics when phenomena like entanglement enter the picture. But a new paper shows ...

If you drop a light object and a heavy object from a tower, which one reaches the ground first? As you may recall from high school physics, this is a trick question. Neglecting air resistance, they ...

Physicists have built a quantum gas that behaves nothing like the substances we are used to, and that is exactly why it is causing such excitement. Instead of slowing down when particles collide, this ...

A single atom as a movable slit: Researchers realize Einstein's thought experiment in original form, observing ...

Classical physics theories suggest that when two or more electromagnetic waves interfere destructively (i.e., with their electric fields canceling each other out), they cannot interact with matter. In ...

The intricate relationship between quantum mechanics and classical physics has long puzzled scientists. Quantum mechanics operates in a bizarre world where particles can exist in multiple states ...

If spacetime is classical, it should undergo random fluctuations, which could in turn change the mass of objects by tiny amounts over time. One experiment the team suggests is that measuring an object ...

Classical physics encompasses the body of theory developed over the past few centuries that describes the behaviour of macroscopic systems. Rooted in Newton’s laws of motion and gravitation, the ...

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

The pioneer of quantum computing talks about how Albert Einstein would have reacted to his experiments, the hype around the ...