7:18 “This state is un-fuck-torizable”

I am doing my Bachelor's degree in Computer Science but can't stop watching Physics' videos from MIT. These videos are just too good !!!

@navjotsingh2251

2 жыл бұрын

These lectures will help you with quantum computing, if you take that at your university it will help to know some quantum mechanics.

@MrHan-is1ko

2 жыл бұрын

I'm doing the exact opposite. Wish the current university system would't be so rigid in terms of courses you have to take.

@paulg444

2 жыл бұрын

change majors

@darthsabbath57

10 ай бұрын

I'm taking a Quantum Computing grad class right now, and this guy is everything. He makes this so much easier to understand. I wish I'd majored in physics :'(

It's to bad the Nobel Prize is not awarded posthumously. John Bell certainly deserves one.

So good lectures, I just cannot stop watching!

The explanation is so good, no complications, al grano.

This is a good simple way to explain entagled states I was struggling grabbing the concept of it and this lecture helped a lot :)

Love the initiative. World class Professor.

As a computer engineering student, entanglement kinda reminds me of flip flop circuits in computer science where the output of one NAND gate is used as the input of the other and vice versa

@frun

2 жыл бұрын

Check what spin conservation means. There are 5 of them.

Nice explanation of tensor product

Amazing sir Barton Zweibach ♥️♥️♥️

Great sir ,, continue to inspire young physicist like us ,, thank you , kindly can ask for notes for " solid state physics "

Everyone forget alice and bob's contribution over 100 years for 2022 nobel prize🙂.

Beautiful lecture

This is way better than watching a movie, way more interesting.

This lecture was fantastic 7:16

Good stuff..

2:15 this is the best lacture ever He is so focused on the subject That his animal instincts are in auto mode 😂

Excellent lecture Sir. Thanks 🙏🙏🙏🙏🙏🙏🙏🙏😊🙏🙏🙏🙏🙏🙏

Amazing lecture bdw

Nice way to describe Entanglement.

I like this video. I recently heard of the zeno effect and now I'm wondering how that would work in an entangled state. Could bob use the zeno effect to measure alice's environment without breaking the entanglement?

searched for that jada and will love，but i evetually started to watch this

Will trynna figure out what jada did with august :

This is addictive.

When you take a measurement, you lift the curtain on something that was always there but just could not be determined until measurement lifts the curtain on either particle. They were destined to be in those states at the moment of entanglement--NOT at the moment of measurement. The indeterminate "all possibilities" state was just seeming that way due to the curtain of non-measurement obscuring the fact of inherent all-along state

@joepierson3859

11 ай бұрын

that's a classical solution, it fails in practice

I wish If all my teachers were like this prof

Mind blown

you can't determine the system if you know the subsystem. if you can't determine the components if you know the system. the measure of either quanity increases the complexity such that the other quanity cannot be determined.

7:19 "this state is unFUCKter..isable" I don't know prof. if it was intentional but it made me laugh out loud.

@joesmith8288

3 жыл бұрын

THIS STATE IS UNFUCKED..tarizable

@balahaasdf2219

2 жыл бұрын

Laughed out loud as well. Right after that: "this is a funny state". Right. The state is funny. Great stuff :)

4m 4th circled squared.

Jada????

Who cannot afford for university,here you can gather your knowledge ❤❤❤

ooo oooo ooo yeah !!!!

Where is Jada Pinkett?

Where does entanglement exist in physical world. How it is achieved?

wave function of this lecture has collapsed at 7:29 minutes. lol

I get heart palpitations from this thinking about the exam I have bombed

Can nature superposition an entangled state AB, with an unentangled photon C to create a new superposition state ABC....in general can you superposition an arbitrary number of states? As in measuring photon C in up results in AB in up-down, and measuring photon C in down results in AB in down-up, respectively?

@brandomiranda6703

6 жыл бұрын

Justin P why not? Cant one do tensor products of 3 vectors if you want? It gives a order 3 tensor but mathematically it seems a well defined operation.

@hadlevick

5 жыл бұрын

Justin P The polydynamics of the movement generates pseudo-autonomy as material property, of the autogenous phenomenon; existing.(...) as you said?

@hadlevick

5 жыл бұрын

Justin P I use (//)

@hadlevick

5 жыл бұрын

It's a honor to meet you living being...

@hadlevick

5 жыл бұрын

Fluid theory (Reproduction/Feed/Reasoning) decanted selfover hexagon...

How to measure multidimensionaly?

7:19....'un what'???

@MrDroenix

3 жыл бұрын

Came to the comments to see if anyone else picked up on that, gave me a good laugh

What is alpa nd beta

Does Jada Smith TA this class?

Where do they explain mathematically and intuitively what this tensor product does? I guess mathematically i know its just matrix multiplication such that one produces a rank 1 matrix but why was that the definition chosen for whatever intuitive operation this tensor product is trying to do? Why tensor product?

@justinp8044

6 жыл бұрын

tensor product operates in hilbert space, which has a real-valued norm. it also scales dimension. Given a 2-d, orthonormal basis: x=[1,0]^T and y=[0,1]^T where ^T is transpose of vectors then the tensor product of x and y gives a vector z = [0,1,0,0] ^T which is 4-d. That's how groups of entangled qubits can hold exponentially more data.

Sigo sin entender esta madre

we live in a simulated universe, if you can accept it - suddenly everything else in universe becomes explainable, from quantum weirdness to gravity, time and the speed of light limit, from unexplainable 100 decimal places number that sets this universe to be just right for formation of stars planets and life to unbelievable complexity of the human brain .. everything..

Simultaneity as unicity...

This John Bell destroyed Einstein Ha Ha

@soumyaadhikari9842

3 жыл бұрын

You know less about Quantum Mechanics.And read Bell's statements even after his theory. He said There may be more on Entanglement which Einstein implied

@_DD_15

3 жыл бұрын

@@soumyaadhikari9842 ever heard of sarcasm? 🤔

@soumyaadhikari9842

3 жыл бұрын

@@_DD_15 Okay I didn't get your sarcasm.Can you elaborate on what you are saying?

@Labroidas

3 жыл бұрын

@@_DD_15 I don't think sarcasm means what you think it means bro

Can entangled pairs affect on time

@sumukhpandya

4 жыл бұрын

Yes.

spooky action at a distance

@stephenanastasi748

3 жыл бұрын

Spooky action at a distance makes an assumption that the world as we perceive it is the same as it actually is. But the previous lectures show quite clearly that this is not the case. Consider the lecture that has a single photon going 'up' and 'down' at the same time, then interfering with itself. This can't happen if the world is as we describe it to be and ignore that it could be otherwise.

Sir, what if they measure the spin of the particle simultaneously?

@frun

2 жыл бұрын

Theoretically it shouldn't depend of the timing(the math is such), but who knows. Also there are uncertainty relations in qm.

Einstein Relativity s relevant for the three-dimensional space whom we know.

I bet Jada Pinkett Smith is interested in this lecture.

@naz6736

3 жыл бұрын

hahahah

@softwarephil1709

5 ай бұрын

She’s busy practicing superposition.

@diraceq

5 ай бұрын

3 years later and this comment still has aged like fine wine

@jazirmohammed608

Ай бұрын

Underrated comment

Please forgive me for being so petty, but I can't help but to imagine Gru giving this lecture. I'm so ashamed of myself. 🙈😂

The mathematical description blew me away! What I don't understand though, is why there are only entangled pairs and not entangled triplets or quadruplets.

@harmansingh-tj2cf

4 жыл бұрын

These exist

@hectormartinpenapollastri8431

9 ай бұрын

You can have as many entangled particles as you want. But determining if a particular state is entangled or not is very hard for more than 2 particles states (this is an open problem, to make an algorithm to determine this).

What if u1, u2, v1, v2 has different chemistry state?

@vedanshi4312

2 жыл бұрын

I don't think this would happen it's on a very low level like photon and that's why they are spinning and it doesn't matter what chemical state they have..

Total angular momentum of the universe should be zero, so once this particles are created, they should be always opposite to each other otherwise nonzero angular momentum of the universe appears,can this explain entanglement?

@lepidoptera9337

2 күн бұрын

Angular momentum is only conserved if the background is both empty and flat. A sugar solution does, for instance, not conserve angular momentum. Neither does a magnetic field and you can bet your life on it that parallel transport in curved spacetime also changes it.

Mathematically , it all fits , but does it physically make sense? Either everything is entangled or nothing.

U do need a strong com.tech.(ers)

How can download your videos with sub title

@mitocw

5 жыл бұрын

The captions are available on MIT OpenCourseWare at ocw.mit.edu/8-04S16 and in our collection on the Internet Archive at archive.org/details/MIT8.04S16/.

confused lecture did not emphasize that the 2 entangled or connected half particles have a single wave function and hence equals a single whole particle also doesn't know that communication is between different particles and never within the same particle

@brandomiranda6703

3 жыл бұрын

what does this mean?

@39mdg92

8 ай бұрын

There's no such thing as half particles, only subcomponents of a quantum system. The states he's describing for superpositioned or even entangled quantum states are wave functions that describe the whole system, composed of the superpositions of the pure state wave functions of the subcomponents. Seems more like a case of confused listener.

Can I understand |u1>, |u2>, Iv1>, |v2> is some specific form of | ψ> ? Anyone please😂

@lepidoptera9337

2 күн бұрын

You can understand them as specific vectors of a vector space.

The very existence of the Pauli Exclusion Principle implies, insists, there is entanglement.

@lepidoptera9337

2 күн бұрын

Yes, and the Pauli Exclusion principle is a direct consequence of relativity. More precisely, one can derive quantum mechanics entirely from relativity and Kolmogorov's axioms for ensembles of independent systems.

@jackbidnik9642

2 күн бұрын

@@lepidoptera9337 You mean I'm right? I get butterflies every time I think of it!

@lepidoptera9337

2 күн бұрын

@@jackbidnik9642 I meant that you made a lucky guess. ;-)

@jackbidnik9642

Күн бұрын

@@lepidoptera9337 Wonderful news about PEP and Kolmogorov's synthesis of relativity and QM. So there's no further need to search fo the TOE? By the way, I know somebody named Pat, that Kolmogorov could buy a vowel or two from.

What is the entanglement operator

@mitocw

5 ай бұрын

Maybe seeing the earlier videos might help you. Here is the playlist: kzread.info/dash/bejne/nHWCvNqzlde2kbQ.htmlsi=vxYg8cX6ogfu7wWi. You can also find course materials on MIT OpenCourseWare at: ocw.mit.edu/8-04S16. Best wishes on your studies!

One way to prove quantum entanglement is by assuming that matter creation is happend instantaneously. So, every quantum states will behave like a synchronized clock to maintain total angular momentum zero

I like to host phycists in India... I have a flat...we can work on some things.... Out of interest of course .. Who knows.....the possibilities are endless

7:17 I have a dirty mind

It's only not transmitting information because you're uncreative. What if the measurement were the outcome of a bet? You get 10,000 galactic credits if it measures UP in the galactic casino. And at the galactic casino satellite, they have an entangled particle - if it measures DOWN, you get 10,000 galactic credits. Place your bets, as your location doesn't matter to win!

What does |x> notation denote? Vector?

@sarahlynn0701

4 жыл бұрын

yes a ket is a Vector

10:20 - of course, this seems to be an overly simplified scenario in which there are only two possible states of the two particles, and thus easy to tell each other's state from the other particle's state, as shown here. But as shown earlier (4:34), both particles could have two states (or even more): u1 and u2 for particle #1 and v1 and v2 for particle #2. In such a chase is it still possible to tell the state(s) of the other particle?

@lepidoptera9337

2 күн бұрын

Particles don't have states. More importantly, particles do not even exist. What does exist are quanta of energy that get exchanged between systems. These quanta do NOT denote states. At best one could say they denote state transitions. In atomic physics we say that a hydrogen atom (system 1) has states that we denote as s, p, d, f etc. and the measurable quanta are the quanta of light that these atoms emits into the electromagnetic field (system 2) when they transition between e.g. a p and an s state. A quantum mechanical ensemble of hydrogen atoms can then be said to be in a superposition of all possible states and the quanta of light that it emits are the hydrogen spectrum. You will, unfortunately, not see this discussed properly in most QM textbooks. You will only find out about this (not so little) complication by reading an actual atomic or nuclear physics textbook.

Phisics in first class1

It conflicts theory of relativity

@quantumspin385

2 жыл бұрын

actually it doesn't and here's why; Here's a better explanation of quantum spin. kzread.info/dash/bejne/i62Oqs-nnanQp6g.html and a better explanation of entanglement kzread.info/dash/bejne/aaKHx7JygqfYZLQ.html Have a look please leave a comment let me know what you thought

@7:18 lol

7:15 no... this state is unfuc-

SMH @ using u and v and writing them so they look exactly the same

@stephenanastasi748

3 жыл бұрын

They don't look the same at all to me. Watch the right hand serif.

@foobarbecue

3 жыл бұрын

@@stephenanastasi748 That's actually helpful, thanks.

@stephenanastasi748

3 жыл бұрын

@@foobarbecue Your welcome. I just wish the rest of it were as easy. Good stuff, though.

why does such an entangled state exist?

@hectormartinpenapollastri8431

9 ай бұрын

It can be constructed and measured. Basically some systems naturally evolve non entangled states in entangled ones, and we use that to construct these weird states

@lepidoptera9337

2 күн бұрын

Because conservation laws exist.

"Entanglement", another label for eternal existence in the time duration timing modulation interval of zero-infinity, Eternity-now at the omnidirectional-dimensional Origin of Superspin-symmetry, Superposition-point Singularity, reciprocal-resonance imaging positioning, here-now-forever. This lecture provides the format and terminology that identifies the principles Mathematically. "Particle" => equivalent geometrical/frequency alignment infinitesimal in the Conformal Cyclical Cosmological Constant of continuous creation connection, the Principle of e-Pi-i reciprocal-resonance sync-sequence imaging.., => basis of Group Theory. (?) Pictorial analysis of Turbulence such as has been done by "Smarter Every Day" helps form a combined Math-Physics Intuition.

You just have trust the equation. I can't do that.. since real science is based on science. I know we dont have science a space station. How do it we experiment?

@joepierson3859

11 ай бұрын

You don't have to trust the equation experiments have proved entanglement many times. You can buy a kit and do the experiments yourself at home it cost a couple thousand though.

Ha ha Nobody asks questions?

💀

This is false math do not follow..

The two particles are entangled because they are the result of a conservation law. So there is no weirdness and no spooky action at a distance. See my detailed explanation at: vixra.org/pdf/1608.0350v1.pdf