@element54_

I watched this series 7 years ago before I graduated high school. Since then I have graduated with a degree with one of my majors being physics, including 3 QM courses. Thank you and good luck to everyone else who is here to learn.

@zay.405

I've been to 3 universities in the past 15 minutes: MIT, Harvard, and Stanford. You could say I'm something of a genius.

@Tomas.Carminatti

00:00 🎓 El profesor Allan Adams da la bienvenida al curso de mecánica cuántica (804) de MIT para la primavera de 2013, destacando su entusiasmo por la materia y presentando al equipo docente.
02:51 🧠 El objetivo del curso es que los estudiantes no solo realicen cálculos en mecánica cuántica, sino que desarrollen intuición para entender los fenómenos cuánticos.
05:42 📚 Se recomiendan varios libros de texto para el curso, destacando la importancia de elegir según el enfoque (mecánica de ondas o mecánica matricial) y las preferencias del estudiante.
08:05 ⏰ La política de tardanzas es estricta, pero se permitirá la eliminación de la nota más baja en las tareas para contrarrestar eventos imprevistos.
13:56 📦 Descripción de cajas (color y dureza) para medir propiedades de electrones, destacando la repetibilidad de las mediciones y su independencia.
19:55 🔗 La correlación entre el color y la dureza de los electrones se demuestra mediante experimentos, mostrando que conocer una propiedad no predice la otra.
21:46 🤔 La expectativa natural sería que todos los electrones blancos salieran blancos del segundo cuadro, pero sorprendentemente, el 50% sale negro.
23:11 🧐 Aunque un electrón se mide como blanco inicialmente, al medirlo nuevamente, puede salir blanco o negro, indicando una naturaleza no determinista y aleatoria.
25:05 🎲 Existe una intrínseca imprevisibilidad y no determinismo en los procesos físicos observados en el laboratorio, revelando que la probabilidad es forzada por las observaciones.
27:54 📦 Es imposible construir una caja que indique tanto el color como la dureza de un electrón simultáneamente debido al principio de incertidumbre.
30:21 🔄 La propiedad fundamental del mundo cuántico es que ciertas propiedades observables son inherentemente incompatibles entre sí, como la dureza y el color simultáneos.
33:41 🔄 Presentación de un dispositivo experimental más complejo con cajas de dureza y espejos, y la introducción de un principio de invariancia: cambiar la dirección no altera las propiedades medidas.
37:28 🤔 Predicción de resultados en un experimento donde electrones blancos se envían a través de un dispositivo con espejos y cajas de dureza, resultando en una probabilidad del 50% para la dureza al final.
43:11 📊 La clase aborda una serie de experimentos relacionados con la superposición cuántica.
45:31 🎓 Experimento: Electrones duros se envían a una caja de dureza y luego a una caja de color, prediciendo una salida 50-50.
46:56 🔍 Experimento complicado: Electrones blancos se envían a una caja de dureza, con una salida sorprendente del 100% blanco y 0% negro.
57:10 🧐 Se introduce una barrera móvil en el camino suave del experimento anterior, reduciendo la salida en un 50%, pero sorprendentemente, no todos los electrones salen blancos, sino 50-50.
01:04:18 🤔 En experimentos cuánticos más complejos, como con cajas de colores en lugar de espejos, los resultados pueden variar, y es crucial abordarlos caso por caso.
01:05:44 🌈 Una "caja de color" en la mecánica cuántica no se verifica directamente, pero su propiedad de ser "blanca" se deduce al observar el electrón que sale de ella.
01:06:14 🇫🇷 Experimentos similares han sido realizados por Alain Aspect, un físico francés, demostrando que la presencia del experimentador no afecta los resultados.
01:06:43 🤯 Al analizar un electrón en una superposición de caminos, surge la pregunta de qué ruta tomó, y ninguna opción (duro, suave, ambos, ninguno) parece adecuada.
01:10:36 🤔 La superposición cuántica plantea un dilema: los electrones no siguen las categorías clásicas de camino duro o suave, ambos o ninguno, desafiando la intuición clásica.
01:11:34 🔄 La superposición cuántica sugiere que los electrones adoptan un modo de ser único y no convencional, llevando a la necesidad de un nuevo lenguaje, la mecánica cuántica.
01:13:28 🔄 La superposición implica que un electrón no es ni duro ni suave, sino una combinación superpuesta de ambas, desafiando la idea de una propiedad definida antes de medir.

@sophbells

These people are so lucky to have a professor like this. My professors never would have said "email me and I'll send you some papers on that question." Lucky as hell

@ChadAmI80

I'm 43. I'm not in the science field and this Prof has me excited about quantum physics. It really does show that a great teacher is key to the success of a class. He is excited, humorous and very knowledgable. If I could only rewind the clock 25 years...These videos are amazing. I really feel like I was sitting in the class. I hope the rest of these are buried in YouTube somewhere for me to watch the entire semester.

@apurvavasavada383

I m a 52 yr old interventional cardiologist...who always loved physics(of course what was tought in our high school at the time was mostly Newtonian..avg human perception scale)....I channeled to med science and enjoyed it. But now, i feel like a 20 yr old when i listen to this stuff ... never too late!

@yashaswipandey2134

00:00 Learn quantum mechanics with intuition through problem-solving
05:42 Choose the right textbook for you
16:41 Color and hardness are uncorrelated properties.
22:21 Physical processes are intrinsically unpredictable and random.
32:53 Electrons behave like cheese
38:40 Electrons follow 50-50 probability of hardness or softness
48:46 Electrons come out of the color box white 100% of the time.
53:20 Electrons generated by rubbing cat against balloon and sent into color box.
1:03:44 The behavior of electrons changes with the presence of mirrors or color boxes.
1:07:49 Electrons have a way of moving unlike anything we're used to thinking about.
Crafted by Merlin AI.

@GordonBancks

when he asked the class to discuss amongst themselves, that room exploded. it genuinely made me cry. i wish i could be in a room like this. i wish i had what those students in that room have. the teacher looked so proud :(

@lecturesbywalterlewin.they9259

Prof Adams is a great Lecturer! Very enthusiastic, very knowledgeable, with a sense of humor.

@jaimemenapadilla

This guy fucking loves what he knows, and he wants you to love it too, which is incredibly refreshing.

@LoldemortII

When he turns to the crowd and asks „Questions?“
Me: Yes, why am I here at 2am?

@ashimr

Class begins at 10:30.

@Majoen1998

32:56
"The miracle is not that electrons behave oddly. The miracle ist that when you take 10^27 electrons, they behave like cheese."

@mttlsa686

I'm a 40 year old man, passionate about the understanding of how the universe works and when he said "except you're all wrong" i've got emotional for a moment because it was a kind of illumination giving me an instantaneous sense of awareness to the existence.

@gamerN77

I can't stress enough how much I love the fact that MIT is providing those courses online for free for anyone to watch. Who knew, that a 17 year old German law student like me could get his hands on quantum mechanics lectures of MIT ^^

@AidenScarborough

I am glad that we can get these advanced educational courses for pretty much free , a good way to identify the smart people and the ones that were unlucky or simply lost during high school

@michaeldavis812

MIT, thank you for having courses such as "Quantum Physics" uploaded to YouTube for people to learn. As a person that has autism, it is much easier for me to learn in a relaxing environment where there are little to no distractions, and at the pace I want. Keep up the great work!

@jamiecfthedrummer

Heisenberg and Schrodinger are speeding down the highway when a state 
cop pulls them over. The cop walks up to the window and asks Heisenberg,
 "Do you know how fast you were going?"
Heisenberg replies, "No, but I knew where I was."
The cop says, "You were going over 90 miles per hour!"
To which Heisenberg replies, "Fine. Now we're lost."
Thinking this answer is a little strange, the cop decides to investigate
 the vehicle. He begins by opening the trunk. Shocked by what he finds, 
he shouts, "You have a dead cat in here!"
Schrodinger answers, "Well I do now!"

@mercster

I'm almost as amazed at MIT's complex blackboard system than the quantum superposition of subatomic molecules.

@TheSleepSteward

It's incredible to think that everyone in that room has now graduated and is incredibly accomplished in their own right. That's beautiful. I wonder where they all are...