Clouds of atoms, vibrating mirrors show their quantum side
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To say the quantum world is unintuitive is a staggering understatement. Particles end up in more than one place at a time, and the instances interact with each other. Decisions made after a photon has traversed an obstacle course determine the path it took through it.
Entangled quantum objects can be in separate galaxies, yet measuring one will instantly set the fate of the second. Obviously, things like this don’t take place in the world of our common experience.
Source: arstechnica.com
