Time feels familiar. It marks every moment of daily life, from the ticking of a wall clock to the changing numbers on a ...

Quantum mechanics is full of states that seem to defy ordinary sense, but one of its strangest ideas has usually been built ...

Quantum mechanics, unlike classical physics, allows objects to exist in more than one state at the same time. This idea is ...

Killing horizon: a thought experiment suggests that the presence of a black hole can decohere a quantum superposition. (Courtesy: Shutterstock/Rost9) A new thought experiment suggests that the mere ...

A new discovery suggests gravitational fields can enable matter to become quantum entangled — and that's even if the concept of quantum gravity does not exist. The idea comes from two London-based ...

Erwin Schrödinger's famous thought experiment, in which we consider a cat inside a box containing a sample of radioactive material whose decay triggers a hammer to break a vial of poison that kills ...

A proposal for putting a living bacterium into a superposition of quantum states has been unveiled by physicists in the US and China. If successful, the experiment would be the first realization – ...