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From: Jeroen Belleman <jeroen@nospam.please>
Newsgroups: sci.electronics.design
Subject: Re: Quantum mystics
Date: Mon, 10 Jun 2024 23:43:38 +0200
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On 6/10/24 19:03, Martin Brown wrote:
> On 10/06/2024 15:45, Jeroen Belleman wrote:
>> On 6/10/24 01:56, john larkin wrote:
>> [...]
>>>
>>> The split-beam interferometer was designed specifically to mess with
>>> our heads.
>>
>> Was it? I think it behaves exacly like you'd expect from
>> a wave phenomenon observed with quantized detectors.
> 
> But the wave phenomena in some experiments (aka wavefunction) can belong 
> to comparatively heavy objects that we would normally think of as 
> classical particles. Indeed we can even image the molecules used at 
> atomic level with scanning tunnelling microscopes.
> 
> I'm pretty sure they have diffracted buckyballs through Young's slits. I 
> think the record for complexity is still held by a fluorinated porphyrin 
> ~10k amu 800+ atoms and efforts are underway to diffract a small virus.
> 
> More info on Arxiv here : https://arxiv.org/pdf/1310.8343

University of Vienna, Zeilinger's fief, again. I'll have a closer
look to see what tricks they played.

> 
> Experimentally it is quite a tour de force!
> 
> Physical intuition tends to break down when you have a superposition of 
> quantum states involved. Attempting to know which slit a particle 
> actually went through destroys the interference pattern and experiments 
> using ultra low flux levels with just a single photon in at any one time 
> still show a diffraction pattern. QM is decidedly counter intuitive.
> 
> Explores all available paths mathematics gets the right results but I 
> can't help feeling that there is a way to avoid the action at a distance 
> implied by quantum entanglement when we get all of the physics correct.
> 
> I didn't think his talk was all that outrageous. A bit over simplified 
> perhaps but then avoiding almost all of the maths that is inevitable.
> 

Over-simplified to the point of being devoid of meaning, indeed.

Jeroen Belleman