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Hardy's Paradox Finally Confirmed: Landmark Experiment Shakes Local Realism
SciTechDaily ^ | October 9, 2024 | University of Science and Technology of China

Posted on 10/15/2024 2:40:36 PM PDT by SunkenCiv

A research team from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS), led by Prof. Jianwei Pan, Qiang Zhang, and Kai Chen, in collaboration with CHEN Jingling from Nankai University, has achieved the loophole-free test of Hardy's paradox for the first time. The team successfully demonstrated Hardy's nonlocality, closing both the detection efficiency loophole and the locality loophole...

Hardy's paradox, introduced by Lucien Hardy in the 1990s, offers a simplified test of local realism—the classical idea that physical properties exist independently of observation and that no signals exceed the speed of light. This paradox exposes the conflict between quantum mechanics and local realism by demonstrating that, under certain conditions where three "Hardy events" have a zero probability, quantum mechanics predicts a non-zero probability for a fourth event, which contradicts local realism.

Experimentally confirming Hardy's paradox is challenging due to the low probability of the fourth event, requiring high fidelity and efficiency in entanglement sources to distinguish it from noise. Prior experiments faced two main challenges: the locality loophole, where measurement choices could affect outcomes, and the detection efficiency loophole, due to optical losses.

In addressing the locality loophole, the researchers meticulously crafted a space-time experimental setup that ensured the measurement choices were spacelike separated from both the entangled state preparations and the photon detections. This configuration precludes any possibility of the measurement settings being influenced by the outcomes, thereby eliminating the locality loophole.

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


TOPICS: Astronomy; Science
KEYWORDS: astronomy; hardysparadox; localrealism; physics; quantummechanics; quantumphysics; science; stringtheory
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To: SunkenCiv

61 posted on 10/15/2024 6:07:12 PM PDT by Larry Lucido (Donate! Don't just post clickbait!)
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To: Redcitizen; MeanWestTexan

Maybe so!


62 posted on 10/15/2024 6:16:53 PM PDT by TheThirdRuffian (Orange is the new brown in)
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To: SunkenCiv

It’s called SunkenCiv’s Paradox.

Do you have, perchance, a pair of nurses?

And now that I have mentioned it, you did, in the past.


63 posted on 10/15/2024 6:22:41 PM PDT by Scrambler Bob (Running Rampant, and not endorsing nonsense; My pronoun is EXIT. And I am generally full of /S)
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To: Scrambler Bob

Shh! Thursday night.


64 posted on 10/15/2024 6:30:08 PM PDT by SunkenCiv (Putin should skip ahead to where he kills himself in the bunker.)
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To: Reeses

“This is evidence that time and space are emergent illusions.”

Well, you’ll keep Buddhists happy with statements like that.

CC


65 posted on 10/15/2024 6:36:46 PM PDT by Celtic Conservative (My cats are more amusing than 200 channels worth of TV.)
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To: SunkenCiv

IOW... If a tree falls in the forest and no one is around to observe... it still makes a noise...


66 posted on 10/15/2024 6:40:42 PM PDT by Dead Corpse (A Psalm in napalm...)
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To: Celtic Conservative

Don’t feel bad. Legendary physicist Richard Feynman said “nobody really understands quantum mechanics.” I think it’s still true.


67 posted on 10/15/2024 6:58:09 PM PDT by hinckley buzzard ( Resist the narrative. )
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To: SunkenCiv

Ooops! Time to re-program the Matrix!


68 posted on 10/15/2024 7:13:53 PM PDT by The Duke (Not without incident.)
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To: BipolarBob

I was thinking God exists all at once, past, present & future. If He needs to make an adjustment somewhere along the line (our physical line), He’s more than capable of doing so. :-)


69 posted on 10/16/2024 1:10:06 AM PDT by Twotone ( What's the difference between a politician & a flying pig? The letter "F.")
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To: Reeses

Thanks for the explanation. But, I am thinking that while your answer explains that what it all means is “that happens on one side of the universe can affect something that happens on the other”, I believe that answer applies to the quantum level of things, and only directly the quantum level. No??


70 posted on 10/16/2024 6:09:51 AM PDT by Wuli
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To: SunkenCiv

So a tree falling in the woods does make a noise if no one’s there to observe it?


71 posted on 10/16/2024 6:16:24 AM PDT by ViLaLuz (2 Chronicles 7:14)
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To: ViLaLuz; Dead Corpse

You two should meet:

https://freerepublic.com/focus/chat/4271240/posts?page=66#66


72 posted on 10/16/2024 7:19:41 AM PDT by SunkenCiv (Putin should skip ahead to where he kills himself in the bunker.)
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To: Twotone
God is so awesome we are incapable of fully understanding Him.
"God exists all at once, past, present & future."
How can we wrap our heads around that? He has always been in existence. There never was a day before He existed. And He will always be in existence without growing old, weak or anything we associate with time and aging. It's certainly beyond me.
73 posted on 10/16/2024 7:25:03 AM PDT by BipolarBob (I may have flunked high school but the pigeons have accepted me as their leader, so I have that.)
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To: SunkenCiv

😂😁👍


74 posted on 10/16/2024 7:41:08 AM PDT by ViLaLuz (2 Chronicles 7:14)
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To: Fester Chugabrew; dfwgator

Oh, okay, now...


75 posted on 10/16/2024 9:00:15 AM PDT by SunkenCiv (Putin should skip ahead to where he kills himself in the bunker.)
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To: Redcitizen

I don’t really know.

There is something going on we cannot understand/perceive from our perspective.

Probably caused by how we perceive time. It’s likely something more akin to a Marvel Multiverse movie than we care to believe.


76 posted on 10/16/2024 11:30:57 AM PDT by MeanWestTexan (Sometimes There Is No Lesser Of Two Evils)
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To: Twotone

He is. He said that. I am who I am.

He always is in the PRESENT.

He exists outside of time and space. Which makes sense, as He created time and space.


77 posted on 10/16/2024 11:33:48 AM PDT by MeanWestTexan (Sometimes There Is No Lesser Of Two Evils)
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To: Wuli
I believe that answer applies to the quantum level of things, and only directly the quantum level. No??

Mostly correct, but useful applications of time and space entanglement are starting to appear, such as securely sending decryption keys, and quantum computers that hack time. There is suspicion that human consciousness uses entanglement. One reason we haven't detected an advanced civilization out there yet might be because speed of light radio communication is way too primitive for them.

78 posted on 10/16/2024 4:10:27 PM PDT by Reeses
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To: Reeses

“There is suspicion that human consciousness uses entanglement.”


79 posted on 10/17/2024 6:53:56 AM PDT by Wuli
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