AuthorTopic: Science Reverses Time in Quantum Computer  (Read 148 times)

Offline azozeo

  • Master Chef
  • *****
  • Posts: 9478
    • View Profile
Science Reverses Time in Quantum Computer
« on: March 19, 2019, 11:36:32 AM »


Time goes in one direction: forward. Little boys become old men but not vice versa; teacups shatter but never spontaneously reassemble. This cruel and immutable property of the universe, called the “arrow of time,” is fundamentally a consequence of the second law of thermodynamics, which dictates that systems will always tend to become more disordered over time. But recently, researchers from the U.S. and Russia have bent that arrow just a bit — at least for subatomic particles.

In the new study, published Tuesday (Mar. 12) in the journal Scientific Reports, researchers manipulated the arrow of time using a very tiny quantum computer made of two quantum particles, known as qubits, that performed calculations. [Twisted Physics: 7 Mind-Blowing Findings]

At the subatomic scale, where the odd rules of quantum mechanics hold sway, physicists describe the state of systems through a mathematical construct called a wave function. This function is an expression of all the possible states the system could be in — even, in the case of a particle, all the possible locations it could be in — and the probability of the system being in any of those states at any given time. Generally, as time passes, wave functions spread out; a particle’s possible location can be farther away if you wait an hour than if you wait 5 minutes.

Undoing the spreading of the wave function is like trying to put spilled milk back in the bottle. But that’s exactly what the researchers accomplished in this new experiment.



https://www.livescience.com/65000-quantum-computer-turns-back-time.html
I know exactly what you mean. Let me tell you why you’re here. You’re here because you know something. What you know you can’t explain, but you feel it. You’ve felt it your entire life, that there’s something wrong with the world.
You don’t know what it is but its there, like a splinter in your mind

 

Related Topics

  Subject / Started by Replies Last post
0 Replies
340 Views
Last post March 15, 2016, 10:51:51 PM
by Palloy
0 Replies
172 Views
Last post May 26, 2018, 08:40:49 AM
by Eddie
0 Replies
347 Views
Last post August 28, 2019, 12:33:48 PM
by azozeo