Quantum mechanics - Double Slit Experiment

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Most people (most physics as well), know something about quantum physics. But we seem to completely ignore the philosophical implications it has.

In quantum mechanics, the double-slit experiment (often referred to as Young's experiment) demonstrates the inseparability of the wave and particle natures of light and other quantum particles.

In other words, this experiment shows us the implications of the wave-particle nature of matter: That we cannot ignore the wave-nature - since it is what decides the distribution of "particles" we observe.

So what does this mean?

It simply means that there is something "out of this world" (1). Something we cannot measure directly and therefore cannot know - that determines how the world looks, and keeps everything in place. Without this unknown - everything would disappear in a flash (2).

(1) Out of this world for many reasons, but to name two: Firstly because the wavefunction is in R^(3/2) "complex spacetime" (before it is normalized), and secondly because we cannot measure it directly (the measurement problem). You could argue that it (the normalized function) is something. Namely probability. So I ask you: Is probability something (physical) or is it a mathematical concept?

(2) Everything would implode for many reasons, but basically because the electron would be dragged into the proton by the electric force between them if it was not kept away by its wave-nature (orbitals are in one cense standing probability waves)

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Category:

Science & Technology

Tags:

• Quantum
• Mechanics
• Physics
• Double
• Slit
• Experiment
• nature
• of
• reality

[Fapsamup]

They ommited to presize that the observer needs light to observe what is happening and that it is light that pushes the electrons away. So it is simple cause and effect and it has nothing to do with mysteries or magic or any new age believe. It is not the observer that makes it behave in an other way just by looking at it or having the power of the mind interfere. It is light to make the experience possible.

[crab0309]

i like the way ur all acting clever yet ur watching a kids version ment to confuse the watcher to grip them into watching it not to explain it

[holonat]

WOOOAAAHHHH!!!!!

[nickzah]

so simple i love this, thank you!

[AWriinkleInTime]

Light is both a wave and a particle, a photon dectector looks for particles so in the experiment the dectector picks up the photon and voila the waves disappear and only the particles show on the screen. I never understood why this was such a big deal, it seems like they were cheating by using the dectector and claiming 'it' is the observer or maybe I am too dumb to get the shock and awe . Either way thats how I see this experiment.

[MichaelMerdok]

What a load of twisted interpretations!! Not ''simply by observing'' it, but by determining its position. No woodoo, no buddism, etc.. Just physics..

[levon]

Where is this from? Id like to see moarrrrr

[ianman6]

@Fapsamup That's a misunderstanding of the observer effect. First, nobody said it was magic. But it is strange. There is no reason why the act of observing should prevent us from measuring other properties. When we observe, light is not emitted from our eyes to then interact what what we are observing. We observe, we are capturing light that is prexisting. The causal arrow is pointed toward us. Observing something should have no effect, but it seems to collapse wave forms to particles.

[Jarrodmontelius]

@crab0309 and you are?

[silverpooh24]

That's incredibly amazing

[faisalhalim]

@w2aiq LOL! Work in the field, and then talk the talk. Or, are you afraid to talk the walk?