Einstein's brilliant mistake: Entangled states - Chad Orzel
1,257,005 Views
1,340 Questions Answered
TEDEd Animation
Let’s Begin…
When you think about Einstein and physics, E=mc^2 is probably the first thing that comes to mind. But one of his greatest contributions to the field actually came in the form of an odd philosophical footnote in a 1935 paper he co-wrote -- which ended up being wrong. Chad Orzel details Einstein's "EPR" paper and its insights on the strange phenomena of entangled states.
WatchThink 5 Multiple Choice &
3 Open Answer Questions Dig Deeper Learn More Discuss 1 Guided Discussion &
2 Open Discussions
3 Open Answer Questions Dig Deeper Learn More Discuss 1 Guided Discussion &
2 Open Discussions
The simplest test of entanglement uses a detector that makes a “click” when it detects state 1, but does nothing for state 0. The lack of a click is then taken as a measurement of state 0. If the detectors are not 100% efficient, though (that is, they occasionally fail to produce a “click” when they’re supposed to), this opens a loophole in the experiment that might allow a local hidden variable theory to survive. How might this work?
Login to answer questionAbout TED-Ed Animations
TED-Ed Animations feature the words and ideas of educators brought to life by professional animators. Are you an educator or animator interested in creating a TED-Ed Animation? Nominate yourself here »
Meet The Creators
- Educator Chad Orzel
- Director Camilla Gunborg Pedersen, Zsuzsanna Banyai
- Narrator Addison Anderson
