Quantum Diode That Breaks the Laws of Physics — Tunnel Diode
84K views · Dec 12, 2025 · Science & Technology
Comments · 368
@agnelomascarenhas8990 · 9 months ago · pinned
Happy 100th birthday Leo Esaki!
62
@ChristieNel · 9 months ago
Gosh, my dad had a tunnel diode and explained how easy it was to build a transmitter with it and how they were magical. This was nearly 40 years ago. I didn't know they were called Esaki, though.
26
@pegasus7607 · 9 months ago
When I graduated in 1967 in electronics, all graduates were given a book written by the staff of General Electric (USA) and devoted to tunnel diodes - I still have it. Tunnel diodes seemed to have a great future at that time. I made a VHF oscillator much as shown in the video. Tunnel diodes were also used in the trigger circuits of some scopes but failed after some years because (as I understand it) that the doping was so high that diffusion carried on very slowly at room temperature and ultimately the negative resistance characteristic disappeared.
46
@ButtonBrand · 9 months ago
In the Ontic framework, particles aren’t little objects flying around. They’re real wave-like modes in an underlying field.<br>In the double-slit experiment, the wave really goes through both slits and interferes with itself; the “particle” only appears when it hits the screen and locks onto it.<br><br>A tunnel diode is the same physics at a smaller scale: the electron isn’t jumping a barrier, its wave already extends through it, and current flows when states line up.<br><br>Interference, tunnelling, and detection are all about wave phase and coupling — not particles choosing paths.
51
@jandartan6666 · 9 months ago
Once, in order to prove the Schrödinger's cat experiment wrong, I put a cat in a box and while inside the cat kept scratching the sides of the box and then I knew he was still alive.
20
@albundy5735 · 9 months ago
It's amazing to think this scaled up to the point where we have SSD drives with terabytes of storage and each bit is held in place thanks to quantum tunneling! It's also why they eventually lose their data as the charge slowly escapes it's cell because of the same effect. Also amazing he's 100 years old.. must be the magic of eating fish every day :)
7
@fngrusty42 · 9 months ago
Just started electronics last year. I'm 70, it's the most amazing subject I've ever came across, the more you learn the more you understand that you really don't know anything. Love it.
15
@RootedCircuitry · 9 months ago
Very interesting stuff! Thanks for taking the effort of making this!
1
@GregoryHawkins-d2p · 9 months ago
Thank you for making this video for us to watch & learn from.
12
@BobPaddock · 9 months ago
Archive has Tunnel Diode manuals from the 60's.
4
@paulfalke6227 · 9 months ago (edited)
The important phrase is "differential negative resistance" and no laws broken. Good old father Ohm is happy with that. By the way, you can build "differential negative resistance" devices out of e.g. two BJT transistors. If you don't have a Esaki diode at hand ...
1
@ke5dev · 9 months ago (edited)
Yes, the tunnel diode receiver episode would be great! Great topic, and very well made! thank you!
Up next
It’s Not Just a Diode! The Mysterious Gunn Diode
Kasyan TV · 36K views
Williamson & Van der Mark electron model | Are electrons made of light?
Huygens Optics · 429K views
The Legendary Magnetron: How It Really Works
Kasyan TV · 214K views
#204: Basics of Tunnel Diodes and their applications
w2aew · 105K views
The Device That Could Give The World Unlimited Energy
LIMITLESS POTENTIAL TECHNOLOGIES · 344K views
Why is Coax 50 Ohms? (#340)
David Casler Ask Dave · 676K views
Why Put A Capacitor Across The Diode? Here's Why!
Mr Carlson's Lab · 1.2M views
The biggest lie about the double slit experiment
Looking Glass Universe · 989K views
How diodes, LEDs and solar panels work
Steve Mould · 861K views
#1815 Tunnel Diode AI301G (part 1 of 3)
IMSAI Guy · 9.5K views
You Were Taught To Test MOSFET The WRONG WAY!! Why The Youtubers were all wrong
Learn Electronics Repair · 133K views
" UNDERSTANDING ELECTRONICS: VACUUM TUBES " 1970 EDUCATIONAL FILM DIODES & TRIODES XD72594
PeriscopeFilm · 222K views
What the Soviets Saw on Venus Before the Signal Went Silent
Destiny · 156K views
Where Do Photons Actually Go When You Turn Off The Light?
Sleep On Physics · 252K views
Why do atoms form molecules? The quantum physics of chemical bonds explained
Arvin Ash · 908K views
“BASIC PRINCIPLES OF FREQUENCY MODULATION” 1944 U.S. WAR DEPARTMENT FILM FM RADIO 86794
PeriscopeFilm · 844K views
AI Expert WARNS: "You're Not Ready For 2027"
The Diary Of A CEO Clips · 1.3M views
NASA Just Received an Unexpected Transmission From Voyager 2
Deep Space News · 68K views
The problem with pretending quantum mechanics makes sense | Sean Carroll
Big Think and 2 more · 1.6M views
How Pythagoras Theorem Proves We Cannot Travel Faster Than Light!
Brain Station Advanced · 397K views