The Story of Quantum Tunneling [& How it Powers Our World]

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The story of quantum tunneling and how it drives the processes key to the existence of life, told through experiment and simulations while following the early history of the development of the physics of this weird phenomenon.
References:
1. “The early history of quantum tunneling”, E. Merzbacher, Phys. Today 55 (8), 44 (2002).
2. “Quantum Tunnelling to the Origin and Evolution of Life”, F. Trixler, Current Organic Chemistry, 17, 1758-1770 (2013).
3. “Flash memories: structure and constraints”, J. Boukhobza, P. Olivier, in Flash Memory Integration, 2017, (ISTE Press - Elsevier)
Credits:
Math equations created using the open source library Manim, maintained by Manim Community. www.manim.community/ .
Chapters:
0:00 Intro
0:29 The Experiment
2:58 Wave-particle duality
6:11 Nordheim and square barrier
9:07 Gamow and Alpha decay
11:06 Tunneling in Sun, DNA, SSD...
12:12 Outro

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Опубликовано:

21 июл 2024

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Комментарии : 9

@TWPO 17 дней назад

I really appreciate how you tied real-world (and even out-of-this-world!) examples to the concepts you laid out. Great video!

@Least.Action 16 дней назад

Thank you.

@5ty717 19 дней назад

Weak force/strong force/ gravity/ emf please… Beautiful illustration. Nice quiet voice. Excellent

@Least.Action 19 дней назад

Thank you.

@MiragePanda 19 дней назад

ooooh kurtzgezagt vibes

@Least.Action 19 дней назад

@thevikifalcon7670 18 дней назад

I have a question... when part of a wavefunction leaks through a barrier, that only indicates there's a probability the particle will be found on the other side, not that the particle has actually physically transmitted. But we can observe decay and nuclear fusion happening, so at some point in time the particle actually does end up physically appearing on the other side of the barrier. So when exactly does the physical tunneling actually occur?

@Least.Action 17 дней назад

You are right that wavefunction leaking through the barrier indicates that there is a probability that the particle will be found on the other side of the barrier. Let’s say for some case it is 1%. What that actually means is that if the particle is incident on the barrier 1000 times, 990 times it would be reflected back and approximately 10 times it would be found on the other side. Alternatively if 1000 particles are incident on the barrier, 10 will end up on the other side of the barrier. This is illustrated at 8:24 min in the video. Hope this helps.