Thursday, 14 March 2019

Physicists "reverse time" using quantum computer

quote [ Researchers from the Russia teamed up with colleagues from the US and Switzerland and returned the state of a quantum computer a fraction of a second into the past. They also calculated the probability that an electron in empty interstellar space will spontaneously travel back into its recent past. ]

No, they didn't turn back time like Cher wishes she could, but it's still pretty neat what they did.

Here's an explanation I found:

This reversal was not performed in a closed system, but was instead driven by a specific device. The second law of thermodynamics still holds in general for closed systems. The flow of time was not ever actually reversed in this system, however a quantum states evolution was successfully reversed. Its cool and useful, but it's not time travel.
[SFW] [science & technology] [+3 Interesting]
[by JWWargo]
<-- Entry / Comment History

ubie said @ 3:05pm GMT on 14th March
Like most of these kinds of articles I'm going to take a 'wait and see' approach.
Nifty and all if true, but I have strong counts pending peer review and independent replication of the experiment.
Hell, with these kinds of articles u often doubt what is written is what the paper or scientists actually say.


ubie said @ 3:05pm GMT on 14th March
Like most of these kinds of articles I'm going to take a 'wait and see' approach.
Nifty and all if true, but I have strong counts pending peer review and independent replication of the experiment.
Hell, with these kinds of articles i often doubt what is written is what the paper or scientists actually say.



<-- Entry / Current Comment
ubie said @ 3:05pm GMT on 14th March
Like most of these kinds of articles I'm going to take a 'wait and see' approach.
Nifty and all if true, but I have strong counts pending peer review and independent replication of the experiment.
Hell, with these kinds of articles i often doubt what is written is what the paper or scientists actually say.




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