Sister blog of Physicists of the Caribbean in which I babble about non-astronomy stuff, because everyone needs a hobby

Monday, 27 August 2018

Macroscopic entanglement

In an experiment, performed recently in the laboratory of Professor Mika Sillanpää at Aalto University in Finland, we set up two microfabricated vibrating circular membranes, like drumheads. Each was about the width of a human hair and we were able to measure them in a state that exhibited the quantum property of entanglement.

The two drumheads were brought into an entangled state through careful driving of a superconducting electrical circuit to which both were coupled. While these drumheads may seem small on the human scale, they are huge on the atomic scale – each drumhead is composed of trillions of atoms.

These drumheads are the largest objects to be prepared in an entangled state, and this experiment is perhaps the closest approach to a literal implementation of the famous thought experiment of Einstein, Podolsky and Rosen that first studied the phenomenon that became known as entanglement back in 1935.

Originally shared by Michael Sean Wright
https://ponderwall.com/index.php/2018/08/26/experiment-shows-quantum-entanglement-human-scale/

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