Fluid Tests Hint at Concrete Quantum Reality • Hacker News Board

Re: Fluid Tests Hint at Concrete Quantum Reality

#121

Post by SilasX » Tue, Jul 01, 2014, 8:25 PM UTC

prutschman wrote: post #120

SilasX wrote: post #99

Earlier quoted context omitted.

>>And why should we read Yudkowski instead >I would never say instead of. When you recommend something, you're implicitly advocating that it be read in preference to other works on the matter. It makes no sense to say "I recommend this, but it's no better than anything else."

"I recommend this. Reading it is better than not reading it, and you may not have been aware of its existence." The recommender is in no position to know whether your next-best alternative was reading another work on the subject or reloading hacker news or taking a nap.

The recommendation and its follow-up question were about alternatives in the context of learning about quantum mechanics.

Re: Fluid Tests Hint at Concrete Quantum Reality

#122

Post by trhway » Wed, Jul 02, 2014, 3:22 AM UTC

Ono-Sendai wrote: post #107

trhway wrote: post #9

Earlier quoted context omitted.

In interpretation of dual slit experiment people do the main mistake of mixing up the 2 waves - one is wave like quantization of position and another is de Broglie wave-equivalent of the particle. The mix up is caused by photon where both have the same wavelength. They are different in the case of all other particles. Hitachi experiment shows its the best - it clearly shows interference of the positional waves of dif…

Do you have any more information or references about this, in particular your claim that there are two different wavelengths in play?

it is actually doesn't matter. The de Brogile wavelength can be excluded from consideration completely - imagine an electron as just a very small metal speck whose position function is wave-like quantized - you'd still get the same interference pattern in the double-slit experiment. [The position function is wave-like quantized because it is QM, and thus all the interactions of the particle with environment - ie. electron with the EM field sending it to the screen in this experiment - happens in "quanta"s. ]

Don't get me wrong - i'm not denying de Brogile, i'm just saying that wave-like nature of a particle isn't necessary (and thus isn't proven by ) the double-slit experiment. The single-particle double-slits are never really "single" particle - they always show statistical aggregate of many single particles and thus they are explainable by positional quantization alone (of small specks as described above).

Re: Fluid Tests Hint at Concrete Quantum Reality

#123

Post by im3w1l » Wed, Jul 02, 2014, 9:21 AM UTC

ars wrote: post #106

im3w1l wrote: post #98

Earlier quoted context omitted.

I'd like to propose a thought experiment that in my opinion speaks for a many world interpretation. Imagine Schrödingers Cat. Only we have a physicist in the box instead! Also inside the box is a photon emitter programmed to send a photon after 30 seconds. Our dear physicist has been instructed to, if he is still alive after 20 seconds (adjusted to have 50% prob) to move the emitter just a tiny little bit to the left…

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

Since you only post a link with no comment text I don't really know what you mean to say with it.

Anyway, I think my proposal had a key advantage. The interference pattern could in theory be measured. We could get tables and graphs and sigma values.

Re: Fluid Tests Hint at Concrete Quantum Reality

#124

Post by ars » Wed, Jul 02, 2014, 7:48 PM UTC

im3w1l wrote: post #123

ars wrote: post #106

Earlier quoted context omitted.

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

Since you only post a link with no comment text I don't really know what you mean to say with it. Anyway, I think my proposal had a key advantage. The interference pattern could in theory be measured. We could get tables and graphs and sigma values.

It was just a link to something that seemed very similar to what you said.