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Schrödinger's cat lives and dies in two boxes at once
Physics World ^ | May 27, 2016 | Staff

Posted on 05/27/2016 11:17:02 AM PDT by C19fan

Schrödinger's cat now has a second box to play in, thanks to an international team of physicists that has created a two-mode "Schrödinger's cat state" for the first time. The experiment brings together two purely quantum properties, in that the "cat" (i.e. the photons) is simultaneously "alive and dead" (in a superposition of states) while also in two locations at once (the two boxes are entangled with one another).

(Excerpt) Read more at physicsworld.com ...


TOPICS: Pets/Animals; Science
KEYWORDS: computing; mechanics; physics; quantum; quantumcomputing; quantummechanics; schrodinger; schrodingerscat; schrodingerslitter; stringtheory
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To: C19fan; HiTech RedNeck; Nifster; Billthedrill; sagar; Talisker; SunkenCiv; Boogieman
To physicists the term 'measurement' is more often used than 'observation' to mean the same thing. Schroedinger's Cat points up what is often called the 'measurement problem'. Here is a long but interesting discussion of the four current main candidates for resolution of the measurement problem for all those interested:

The Measurement Problem

21 posted on 05/27/2016 11:54:45 AM PDT by who_would_fardels_bear
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To: Slings and Arrows

NOOOOOOOOOOOOOOOO


22 posted on 05/27/2016 12:05:59 PM PDT by martin_fierro (< |:)~)
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To: HiTech RedNeck

I’ve always wondered about Schrodinger’s dog......


23 posted on 05/27/2016 12:10:28 PM PDT by Fiddlstix (Warning! This Is A Subliminal Tagline! Read it at your own risk!(Presented by TagLines R US))
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To: C19fan
It's neat; but even the qubit--as--error correction requires yet another order of observation.

Remarkable also that you must have perfection to correct error, regardless of degree.

24 posted on 05/27/2016 12:21:41 PM PDT by StAnDeliver ("Too bad your overhauled unicorn start-up failed, Ted.")
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To: Fiddlstix
I’ve always wondered about Schrodinger’s dog......

And Pavlov's cat?

25 posted on 05/27/2016 12:31:19 PM PDT by Rio (Proud resident of the State of Jefferson)
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To: C19fan

It is assumed that particles generally don’t know what state they are in. Think about it like a toggle set to one of two positions. Einstein didn’t like the thought that, for a given period of time, the switch could be in either position.


26 posted on 05/27/2016 12:38:43 PM PDT by linear (Fealty to no man or party.)
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To: C19fan

https://boardgamegeek.com/boardgame/172235/schrodingers-cats

Playing around with physics.


27 posted on 05/27/2016 12:45:17 PM PDT by MrEdd (Heck? Geewhiz Cripes, thats the place where people who don't believe in Gosh think they aint going.)
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To: C19fan

A statement is either true or untrue. There is no middle ground between true and untrue.
Anyone who denies that first principle cannot have a discussion with someone who doesn’t.
Don’t blame me. Ask Aristotle and Aquinas.


28 posted on 05/27/2016 12:58:27 PM PDT by I want the USA back (The further a society drifts from the truth, the more it will hate those who speak it. Orwell.)
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To: who_would_fardels_bear

As a metrologist ( no not weather). I appreciated this article very much


29 posted on 05/27/2016 1:05:29 PM PDT by Nifster (I see puppy dogs in the clouds)
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To: who_would_fardels_bear

Yeah I know it was a lecture. Still enjoyable


30 posted on 05/27/2016 1:13:42 PM PDT by Nifster (I see puppy dogs in the clouds)
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To: Snickering Hound

31 posted on 05/27/2016 1:45:02 PM PDT by Dr.Deth
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To: C19fan

Is Schrödinger’s cat alive or dead? The only honest answer is, “We don’t know until we look in the box.”


32 posted on 05/27/2016 1:52:34 PM PDT by zot
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To: C19fan

Some wit suggested that Schrödinger’s cat is now the feline equivalent of Dr. Manhattan in the Watchmen series.


33 posted on 05/27/2016 1:58:33 PM PDT by yefragetuwrabrumuy ("Don't compare me to the almighty, compare me to the alternative." -Obama, 09-24-11)
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To: Rio
I understand Pavlov had a lot of trouble with his cat.
Picky eater. Didn't respond to the bell.
So, he switched to dogs.
34 posted on 05/27/2016 2:00:33 PM PDT by Fiddlstix (Warning! This Is A Subliminal Tagline! Read it at your own risk!(Presented by TagLines R US))
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To: Billthedrill

It amounted to a “throw-away line”. There’s a lot of things wrong with it, and if you start cleaning it up you’re right back in Copenhagen.


35 posted on 05/27/2016 2:39:14 PM PDT by dr_lew
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To: dr_lew
...if you start cleaning it up you’re right back in Copenhagen.

Yep, that's just exactly where it ends up. Plus you've got a cat totally pissed off at you and who will end up crapping in yer shoes for revenge.

36 posted on 05/27/2016 2:47:47 PM PDT by Billthedrill
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To: who_would_fardels_bear

Thanks!


37 posted on 05/27/2016 4:01:40 PM PDT by SunkenCiv (I'll tell you what's wrong with society -- no one drinks from the skulls of their enemies anymore.)
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To: C19fan

38 posted on 05/27/2016 5:54:29 PM PDT by Redcitizen
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To: Fiddlstix

Giggle...giggle. Great response.
Funny thing is that most of us know this theory from The Big Bang Theory. Thank you, Sheldon


39 posted on 05/28/2016 4:29:02 AM PDT by Mrs. B.S. Roberts
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To: I want the USA back
A statement is either true or untrue. There is no middle ground between true and untrue.

But you're not dealing with a "statement" here. You're dealing with "states."

A good example would be with time. I think we can all agree that a second is a finite, definable unit of time. However, depending on location and surrounding "environmental" variables, a second at point A and a second at point B are not necessarily the same duration, even though they're each a second.

This was demonstrated with the development of GPS, which requires very accurate time keeping. When it was first developed, it was found that GPS had problems with points on the earth moving around. It came from the fact that time "runs differently" on earth than it does in orbiting satellites, proving Einstein's theory.

Mark

40 posted on 05/28/2016 7:47:38 AM PDT by MarkL (Do I really look like a guy with a plan?)
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