#double slit

[orson-pope]

Today in my optics class, learning about the diffraction and... slits.

Slit this, slit that, and I can't concentrate because fanfiction RUINED ME!

I can only think about (Krennic's and Thrawn's) hands 😩

[fashionfotorecccluse]

Double slit

[elkement]

Atoll of Diffraction - hand-crafted (work-in-progress)

Developing a process to use Procreate (my iPad drawing software) just as I would use ruler and compass for creating a descriptive geometry drawing! I am drawing lots of (digital) circles and straight lines to construct an axonometric drawing of the diffraction curves of a double slit - step by step, as indicated by the annotations! 1 - Peaks seen from above, physics of diffraction for a double slit (maxima) 2 - Look at them the from the side, "copy co-ordinates" from top view. 3 - Enveloping curve - physics of diffraction for a single slit (minima) 4 - Axonometric projection "up to 3D", maxima from intersections. 5 - Connect the maxima with smooth curves (freehand)

It encapsulates what I like about geometric drawings: The "code", the "calculations", the "debugging", the "documentation", the "comments", and the result - all in a single image!

[deadcolour]

𝖈𝖗𝖊𝖆𝖙𝖎𝖓𝖌 𝖒𝖞 𝖔𝖜𝖓 𝓻𝓮𝓪𝓵𝓲𝓽𝔂

[startswithabang]

Observing The Universe Really Does Change The Outcome, And This Experiment Shows How

“The answer, disconcertingly, is that we cannot conclude whether nature is deterministic or not, local or non-local, or whether the wavefunction is real. What the double slit experiment reveals is as complete a description of reality as you're ever going to get. To know the results of any experiment we can perform is as far as physics can take us. The rest is just an interpretation.

If your interpretation of quantum physics can successfully explain what the experiments reveal to us, it is valid; all the ones that cannot are invalid. Everything else is aesthetics, and while people are free to argue over their favorite interpretation, none can lay any more claim to being "real" than any other. But the heart of quantum physics can be found in these experimental results. We impose our preferences on the Universe at our own peril. The only path to understanding is to listen to what the Universe tells us about itself.”

What do the quantum experiments we perform teach us about the nature of reality?

Is the Universe deterministic or non-deterministic?

Does physics only exhibit local phenomena, or does it have non-local phenomena as well?

Is the wavefunction a physically real entity, or just a calculational tool?

Believe it or not, physics doesn’t answer these questions, nor can it. All we can do is test the Universe via experiment, and observe how it behaves under those conditions. Perhaps the strangest experiment of all is the quantum double-slit experiment, which still gives us new insights after all these years. Observing the Universe really does change the outcome, and the double-slit experiment shows how.

[curiositydotcom]

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Curiosity Daily Podcast: 3-Step Fear Control Method, Quantum Physics Changing the Past, and Red Meat Allergies from Tick Bites

Learn about a quantum physics quirk that might mean you can change the past; how a bite from a lone star tick could make you allergic to red meat; and a fear researcher’s three-step RIA method you can use to control your fears.

In this podcast, Cody Gough and Ashley Hamer discuss the following stories from Curiosity.com to help you get smarter and learn something new in just a few minutes:

A Quirk of Quantum Physics Might Mean You Can Change the Past

The Bite of a Lone Star Tick Can Make You Allergic to Red Meat

Use the RIA Method to Control Your Fears

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[boundless-science]

Quantum Double Slit Experiment The double slit experiment is one of the most well known in modern physics. It supports wave-particle duality, which is a concept in quantum mechanics that every particle is also described partly in terms of waves. So if a wave passes through a parallel double slit, whether it’s water, sound or light, an interference pattern will be observed. A modified version of the double slit experiment is set up to fire a single photon through a double slit such that the scientists don’t know which slit it travelled through. When the effect against the backdrop is measured, an interference pattern can be observed suggesting the photon travelled through both slits as a wave. However, as soon as they place a detector to determine which slit the photon travels through, the interference pattern disappears, and a splatter pattern can be seen against the backdrop. This shows that the photon travelled through one of the slits as a particle, and not as a waveform. So somehow by the act of observing a particle, we change it. A modified version of the double slit experiment called the delayed choice experiment, has results that just beg more questions. At each slit they place a crystal which splits incoming photons into identical pairs. One photon from this pair will form a standard interference interference pattern and the other one will travel to a detector. Even if the photon that hits the detector is measured after the first photon hits the screen, it still changes whether or not an interference pattern was observed. So not only can we influence particles just by observing them, but those observations can alter what happened in the past. This experiment has been repeated with molecules as large as Buckminsterfullerenes (60 carbon atoms) with the same results, and there are plans to attempt the same experiment with viruses.

[inn-volva]

@47ns We clean up nicely.