04:53The Quantum Bomb-Tester!
From the creator
Elitzur-Vaidman bomb tester. You have a bunch of bombs, but some of them are duds. Can quantum physics help us find the live ones without detonating any of them? Hi! I'm Jade. I draw pictures that move and become animated physics videos. ***SUBSCRIBE*** https://www.youtube.com/c/upandatom ***Let's be friends*** TWITTER: https://twitter.com/upndatom?lang=en ***MORE QUANTUM PHYSICS VIDEOS*** Maxwell's Demon - Why You Can't Get Something For Nothing https://youtu.be/ULbHW5yiDwk The Double Slit Experiment: Light as a Wave https://youtu.be/gRX-s0p4HpM MUSIC: http://www.bensound.com Thanks for watching! __________________________________________________________________ Imagine you have a bunch of photon-sensitive bombs, so if you shine a single photon at any of them they will detonate and explode. But the problem is that some of these bombs are duds. Is there a way to test which bombs are live and which bombs are duds without detonating any of them? Quantum physics says there is! A thought experiment called the Elitzure-Vaidman bomb tester uses the principles of quantum superposition to perform an interaction-free measurement. In short, this means they can test if a bomb is live without and explosion. An Elitzur-Vaidman bomb-tester uses a Mach-Zehnder interferometer, with the light source emitting only single photons at a time. Classically, we would expect that 50% of the time the photon showed up on detector A and 50% of the time it showed up on detector B. However,
Published 2016-11-10 · Watch on YouTube ↗
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