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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
That’s just as well, can’t put Hellman’s mayo on it west of the Rockies.

Bring out the Hellman's and bring out the Best!

Hellman's mayo is Best mayo west of the Rockies. Same stuff.

41 posted on 10/15/2024 4:20:35 PM PDT by Crusher138 ("Then conquer we must, for our cause it is just")
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To: maro

It is worse than that. If Hardy’s paradox is true we can’t know anything about the nature of anything because we can’t separate causes from effects.

It is just a way restating the old “There are no absolutes” moral argument. Hardy’s paradox is apparently undercut by its own axioms.

If we cannot divide causes from effects then we can’t know, at an ultimate level, anything about anything. And that includes the results of the experiment the researchers conducted. They cannot know their observations are true.


42 posted on 10/15/2024 4:24:34 PM PDT by Fai Mao (The US government is run by pedophiles and Perverts for pedophiles and perverts.)
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To: Buttons12

Human observation means what you might think. A human looking at or observing the thing being measured. Heisenberg’s principle says that until someone does a measurement, the physical state of a particle is indeterminate. In other words, electrons and protons don’t circle the nucleus of an atom like a little solar system. That is a Newtonian way of thinking. Rather, their position and velocity are merely probabilistic until measured.


43 posted on 10/15/2024 4:31:05 PM PDT by maro (MAGA!)
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To: Fai Mao

Interesting point. The snake swallows its own tail.


44 posted on 10/15/2024 4:38:15 PM PDT by maro (MAGA!)
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To: SunkenCiv

This is deep...

It basically means the universe, as perceived, only exists and follows rules WHEN it is being observed.

Two particles, on opposite sides of the universe, can interact with each other INSTANTANEOUSLY. Forget the speed of light. This is the speed of thought.

One could say this infers that the universe exists AS consciousness.

Remember in the Matrix when Neo could control reality with his mind? This suggests that we live in such a reality.

It isn’t that we observe things that exist...more correct is things exist BECAUSE we observe them.

My head hurts.


45 posted on 10/15/2024 4:42:08 PM PDT by Crusher138 ("Then conquer we must, for our cause it is just")
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To: dangus

Hardee’s Paradox.

Which way to go?

Frisco Breakfast sandwich or the super star combo?

Oh the huge manatee.


46 posted on 10/15/2024 4:45:53 PM PDT by Texas resident (Que Mala= Bad Juju.)
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To: maro

Yes, I’m (sufficiently for this) familiar with Heisenberg’s uncertainty principle. It’s the “someone does a measurement” part I find a bit vague. What sort of observer, what sort of observation, qualifies? And what does not?
Again, just...wondering.


47 posted on 10/15/2024 4:53:28 PM PDT by Buttons12
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To: Buttons12

As I understand it, an observation is any action that obtains information about the particle’s location or speed.


48 posted on 10/15/2024 5:03:17 PM PDT by maro (MAGA!)
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To: Crusher138

Yup. I’d often wondered why. As a kid I’d see that on the Hellman’s label. So, first time I traveled to Cali, I went to a store to get a big map (remember those? :^) of LA and spotted a grocery section — all of the products were travel size or rather bodega size. I nabbed a Best Foods mayo. :^)

Sidebar, this store was not small, but the same ratio as a wafer. Half of one aisle on one side was nothing but hair care products. Half of one side of another aisle was entirely made up of bottled water (a number of brands and sizes). “Welcome to LA” I said to myself. :^)


49 posted on 10/15/2024 5:06:33 PM PDT by SunkenCiv (Putin should skip ahead to where he kills himself in the bunker.)
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To: Reeses

Other experiments prove something that happens in the future can affect something that happened in the past.
= = =

I might suggest that things happening in the past will affect things happening in the future.

On the other hand, a future shooting of a gun, say, will make some past dead shooting victim rise from the dead when the future gun misfires.

For more recent applications, look at the voting returns for Trump vs. Biden overnight.


50 posted on 10/15/2024 5:10:35 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: SunkenCiv

The only thing that I prefer local and Chinese is the Chinese takeout.

CC


51 posted on 10/15/2024 5:12:11 PM PDT by Celtic Conservative (My cats are more amusing than 200 channels worth of TV.)
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To: SunkenCiv

So it’s like ‘believing what can be unburdened by what has been’?


52 posted on 10/15/2024 5:17:36 PM PDT by Bullish (...And just like that, I was dropped from the ping-list)
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To: Crusher138; 2nd Amendment; BipolarBob; Buttons12; Celtic Conservative; Chode; dangus; dfwgator; ...

Yeah, the company that makes Excedrin love this kind of thing. :^)

BTW, high five to all, I’d never have suspected this many replies in such a short time frame on this topic! Great job! Thanks all!


53 posted on 10/15/2024 5:27:27 PM PDT by SunkenCiv (...even the joker/s who replied using more than one nick.)
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To: SunkenCiv

The 2022 Nobel Prize in Physics basically confirmed this already, but this provides more specific experimental data that may help answer many questions in various subfields within physics. This discovery fits with a theory by Donald Hoffman, who thinks our minds don’t show us the real world, but a simplified version. The Nobel Prize winners and those this article reports on did actual experiments, while Hoffman’s ideas come from math and game theory, not lab work. These discoveries, along with the development of artificial intelligence that can think like humans, might help us understand one of science’s biggest mysteries: how consciousness itself works. Turns out that the laws of physics are really just a function of collective consciousness, and we are living in what could practically be considered a simulation. And now we’ve got more proof.


54 posted on 10/15/2024 5:29:36 PM PDT by unlearner (I, Robot: I think I finally understand why Dr. Lanning created me... ;-)
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To: maro
...even in non quantum, Newtonian contexts, physical reality is affected by human observation.

So this must be a NIH test https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10040962/ to see if their argument regarding Conspiracy spillovers and geoengineering will be accepted by those who lost family and friends or were burnt or flooded out of their homes will accept transitioned science explanations?

55 posted on 10/15/2024 5:31:31 PM PDT by MurrietaMadman (The Gates of hell shall not prevail against you)
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To: SunkenCiv

I’d never have suspected this many replies in such a short time frame on this topic!
= = =

Don’t our replies affect your original post?????


56 posted on 10/15/2024 5:41:33 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: unlearner

https://www.nobelprize.org/prizes/physics/2022/summary/

Loophole-free Bell inequality violation with superconducting circuits (2023)
https://www.nature.com/articles/s41586-023-05885-0


57 posted on 10/15/2024 5:41:34 PM PDT by SunkenCiv (Putin should skip ahead to where he kills himself in the bunker.)
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To: Scrambler Bob

It’s called SunkenCiv’s Paradox.


58 posted on 10/15/2024 5:42:15 PM PDT by SunkenCiv (Putin should skip ahead to where he kills himself in the bunker.)
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To: Crusher138

Face it, we live in a computer simulation. I’m not kidding. This is not the real universe, this is the hypothetical one to see if you are ready for the real one. Think about it, nothing in the Bible contradicts that but rather confirms it. Quantum physics confirms it, or at least some heavy hitters in the QP field believe it so. If we give our life to God, we get to see Heaven or the real universe. Too many things point to it.


59 posted on 10/15/2024 5:43:51 PM 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: gundog

60 posted on 10/15/2024 6:05:41 PM PDT by Larry Lucido (Donate! Don't just post clickbait!)
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