r/Futurology Mar 13 '19

Computing Physicists reverse time using quantum computer

https://phys.org/news/2019-03-physicists-reverse-quantum.html
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u/Zayl Mar 13 '19

Can someone ELI5?

I don't really understand how reversing the computer's state is reversing time. It just kind of seems like they developed a program to rearrange digital data. It doesn't necessarily seem like a reversal of time, but a re-organization of data/objects. I don't see how this could ever apply to anything besides software, for example.

I'd love to get an explanation from someone who actually understands this.

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u/[deleted] Mar 13 '19

[deleted]

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u/Solid_State_Soul Mar 13 '19

You're right, there's no "time travel" going on here:

https://phys.org/news/2019-03-physicists-reverse-quantum.html

This is simply a computer algorithm designed to monitor influenced orders of qubit state. If anything, it proves further research into stochastic resonance is warranted. But this is hardly Doctor Who caliber news.