Physicists reverse time using quantum computer

Another day, another quantum trick.

This time physicists discovered they can reverse the arrow of time and make time move backwards, in another direction.

This also violates the second law of thermodynamics. Amazing! The laws of physics seem to be less and less to be solid, unbreakable laws, thanks to the quantum era.

Physicists reverse time using quantum computer
https://phys.org/news/2019-03-physicists-reverse-quantum.html

 

Not often, though.

 

Appears to violate the second law. We've heard it before and it has never been true.

-------- Arthur S. Eddington (British Astrophysicist, 1882-1944) in The nature of the Physical World

For the moment, and maybe the moment before this, I'm sticking with Arthur.

 

Well, laws that old (19-20th century) are probably classic physics. And quantum physics puts it to shame. The laws of thermodynamics depends on us having a "closed system" (the universe is all that there is) but quantum physics has an opened system with the idea of superposition suggesting that alternate universes are bleeding into our own "open system" (infinite multiverse).

And wasn't it recently the EM drive violated a law of its own, working despite being lawfully impossible???

 

The notion of entropy isn't limited to classical physics.

What we normally find is that a conjugate pair from Heisenberg's Uncertainty Principle rules out any violation of fundamental principles. The best known pair is momentum and position. Another conjugate pair is energy and time.

 

It is based on Mach's Principle. It only violates momentum locally; assuming it actually works. I believe momentum is still conserved at scale - including the entire universe.

There are many hints that some laws of physics may have to be modified. But what we normally find is that the existing laws were valid in their domain. For example, Newton's Laws still work for space flights. They weren't wrong. Einstein just showed that they weren't complete.

You can actually do mathematical approximations in Relativity, using some tricks from math, and arrive at the Newtonian solutions. In fact, all of Relativity reduces to Newtonian Physics at speeds much less than C, and in weak or no gravity fields.

 

https://en.wikipedia.org/wiki/Conjugate_variables

 

pshhhh .. that was yesterday. or tomorrow.

 

When I see the shot put in flight reverse trajectory and return to the putter's hand I will believe, maybe.

 

If we can reverse time - can I have my head hair back please and you can take back the nose, ear and back hair

 

So funny , such a lie , making my ribs tickle with laughing . Pathetic idiots ….

Science is so good at making up BS to spend tax payers money . The science bosses living it up at our expense with their lies .

Lets take them to court , I'll prosecute the liars , they'd lose .

 

What, you don't believe time can be reversed? You're so cynical - I do . . . every word of it. As you say - just more fake science for the gullible among us. Reminds me of the old 'There's one born every minute' aphorism, and it's so true. Although these days I'd say it was nearer five born every minute. Tell some people you're a scientist and they'll believe everything you tell them, no matter how barmy.

 

It is complete garbage like lots of the science , science state is true , I've had enough of these mediocre minded idiots who claim such absurd and bs things .
They're winding me up with the lies and arrogance ..If you've ever talked to science types they are really obtuse ...

 

Time dilation is fake ….I can prove its fake . It's a parlour trick , not even a good one at that .

Space expanding fake ….

E = mc squared fake ….

etc....

More lies than politicians ...

P.s they know its fake as well or they wouldn't defend attempted corrections to it , so hard .

 

Who wouldn't be a fake scientists these days - it's money for old rope?

 

Exactly, they are getting money for talking fake chit . It's about money with them not passion or a love of science . Millions for fake ass experiments ..

Start talking real physics with them and they get lost and don't understand , real stuff is too complex for their little minds .

 

It works like a charm though. If I were a kid just starting out, I'd be a fake scientist. It's better than working for a living?

 

Of course , I wish I knew then what I know now about scientists , I would of been a bs teller too and become a scientist .

What an easy life for lying ….

 

They are so stupid , if a clock ran backwards for 1 second, while that measurement is been measured , a different clocks runs forwards and measures 1 second

-1.s + 1.s = 0.s difference

idiots.....

If we start two simultaneous clocks and 1 measures 0.9s and the other measures 1.s , both clocks have experienced 1.s



One clock measures 0.9s per second

The other 1.s per second

There is no time dilation idiots

edited , added better diagram

 

U.S. grant addiction.

 

Because we have peer review, where every other scientist in the world with an interest wants to prove you wrong. Peer review, duplication, and publication are all checks against personal bias.

Unlike some posters here, science is self correcting.

This is just one paper. Other scientists may find errors and shoot it down. That happens every day in science. That's why one paper alone means nothing.

 

You can't even do 8th grade math. You might want to keep your ignorant opinions to yourself.

 

Suppose I'm walking into a fresh mud flat. When I get to the middle, I tromp around in random directions in the middle until I have my back to the point where I entered the middle. Now I retrace my steps backwards, carefully stepping on my old footprints in the mud without distorting them. Did I cause a reversal of time? No.

I'm not convinced that the official explanation of the electron's retrograde territoriality constitutes a step backwards in time. If nonlocality can go tick tock, tock tick, that's news to me.

 

I didn't have time to read the entirety of the article before. They didn't actually do anything with an electron. It was a simulation on a quantum computer.

Maybe they can argue that the computer itself was actually bumped backwards in time, but that is a new realm of experimentation. I'm not sure what that means as opposed to actually bumping an electron back in time.

Beyond that, it seems to operate within the envelop of uncertainty and the Uncertainty Principle. In fact it depends on it. So is that really going backwards or merely operating on the uncertainty in time?

 

I had to laugh when I read this. Apparently I'm fine with classical time travel. But this newfangled quantum-computer time travel is another matter. Why in my day, we traveled in time like real men! Damn kids these days.