Why Quantum Information is Never Destroyed
PBS Space Time

Why Quantum Information is Never Destroyed

B2Upper-intermediateOctober 31, 202616 min
  • One speaker
  • Science

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE Uploaded 23-05-18 If you have perfect knowledge of every single particle in the universe, can you use the laws of physics to rewind all the way back to the Big Bang? Is the entire history of the universe perfectly knowable? Or has information somehow lost along the way? You can further support us on Patreon at https://www.patreon.com/pbsspacetime Get your own Space Time t­-shirt at http://bit...

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Sentence 11 of 12 · 0:41

Maxwell's equations for electromagnetism,

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These laws can be used to predict how the universe will

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0:00

Thanks to CuriosityStream for supporting PBS Digital Studios. If you have perfect knowledge of every single particle in the universe, can you use the laws of physics to rewind all the way back to the Big Bang? Is the entire history of the universe perfectly knowable?

0:20

Or has information somehow been lost along the way? The laws of physics are equations of motion. They are mathematical rules that dictate how systems evolve in time.

0:37

Newton's equations for classical mechanics, Maxwell's equations for electromagnetism, and the Schrodinger equation for quantum mechanics. These laws can be used to predict how the universe will

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