Arvin Ash
Arvin AshTo learn QM or quantum computing in depth, check out: https://brilliant.org/arvinash — Their course called “Quantum computing” is one of the best. You can sign up for free! And the first 200 people will get 20% off their annual membership. Enjoy!
Chapters:
0:00 – Weirdness of quantum mechanics
1:51 – Intuitive understanding of entanglement
4:46 – How do we know that superposition is real?
5:40 – The EPR Paradox
6:50 – Spooky action and hidden variables
7:51 – Bell’s Inequality
9:07 – How are objects entangled?
10:03 – Is spooky action at a distance true?
10:40 – What is quantum entanglement really?
11:31 – How do two particles become one?
13:03 – What is non locality?
14:05 – Can we use entanglement for communication?
15:08 – Advantages of quantum entanglement
15:49 – How to learn quantum computing
Summary:
Albert Einstein described Entanglement as âspooky action at a distance,â where doing something to one of a But it’s not spooky action at a distance, at all. So what is entanglement?
Electrons have a quantum property called spin that makes them act like little magnets. Weâll always measure it pointing in one direction or the opposite: up or down, say. If we entangle two electrons so that their spins are always pointing in opposite directions, the two spins are said to be correlated. If we entangle the two electrons in this way â and fire them in opposite directions, we donât know which one of the pair is up and which one is down until we make a measurement. If we find that electron 1 is spin up. We know the spin of electron 2 must be down.
Why isn’t this like a pair of gloves? The handedness of the gloves is there from the start. It never changes. With entangled particles thatâs not the case. They are in a superposition. Prior to measurement, there is no definite answer.
How do we know superposition is real? The double slit experiment is good evidence. Entangled particles are stranger, because a measurement on one particle determines the outcome for both of them.
Albert Einstein thought up an experiment like this in 1935, in collaboration with two younger scientists, Boris Podolsky and Nathan Rosen. They are referred to as EPR for short. They believed superposition was impossible because information cannot travel instantaneously. So they thought there must be hidden variables. But Danish physicist Niels Bohr, said that Einstein was just wrong.
Scientists remained divided. in 1964, Irish physicist John Bell figured out how to set up an experiment, Bell’s inequality, to determine who was right. Bell proved that quantum mechanics predicted stronger statistical correlations in the outcomes of some measurements than any hidden variable theory could.
When Bellâs experiment was first done in a lab in the 1970âs by physicists John Clauser and Stuart Freedman at the University of California Berkeley, it showed that there was no sign of hidden variables.
How are two particles entangled? You can entangle two photons from birth or you can bring two quantum objects very close together.
Once objects are entangled, theyâre not separate. They are, really two parts of a single object. In quantum mechanics, objects are described by wave functions: mathematical expressions that encapsulate all that can be said about the object. This wave function can be spread out in space. This is why particles can act as if they are waves. But if we entangle two particles, they are then described by a single wave function. They are mathematically the same object.
Entanglement tells us is that the quantum world has nonlocality: things at one place donât depend just on what happens in the neighborhood of that place, as they do in the classical world. Quantum non locality is an alternative to spooky action at a distance.
#Entanglement
#quantumentanglement
It will not let us communicate faster than light because only knowing how they are correlated can provide any meaningful information. This has to be transmitted at the speed of light.
The advantage to using entangled particles to send messages is you can encrypt the message in a way that it can never be intercepted and decrypted without that decryption being detected. Entanglement is also the key to quantum computing.
source
35 Comments
@mertashanand975
02/18/2025 - 10:39 PMit was crap all you siad
@dickbrmly
02/18/2025 - 10:39 PMPut two magnets together and you get entanglement. Slowly pull them a part and you get spooky action at a distance. Everything held together is held by quantum fields, –so massive. The double slit is flawed because one photon from a laser isn't so east to do. If the wave hits something, the wave will collapse. You can't get something less than a photon. You put anything in way of such a weak wave, it will charge the surface it hits quickly killing the whole wave. If you deepen the double slits, you get the same result of a collapsing electro-magnetic wave. NO religion here… What is the difference between light and an electric event—the frequency. That's it.
@maxthemagition
02/18/2025 - 10:39 PMBecause the speed of light cannor be increased and information transmitted faster than the speed of light.
This entanglement thing where a change in one part of the Universe changes another thing anywhere in the Universe is blantantly false in my opinion.
OK so it was measured and proven correct, but in my opiniom the measuring however it was done, must be flawed.
If something is too good to be true then go back and find out what was wrong with it originally.
@marycmccarthy6319
02/18/2025 - 10:39 PMThanks!
@timlong4256
02/18/2025 - 10:39 PMThe fact that Bohr's calculation is only valid for the simple hydrogen atom (in spite of his success with electron absorption and emission rates) indicates that for larger atoms, Pauli-pairs of opposite spins occupy the quantum shells as beta-pairs due to their opposite spin orientations. This binary electron pair invalidates the conclusion of Bell's Theorem as well as providing the necessary configuration to calculate the proper structure that eluded Bohr. It also demonstrates the ratio providing the fine structure constant which relates the atomic radius at a quantum shell to the binary radius of the Pauli-pair's rotational radius.
@timlong4256
02/18/2025 - 10:39 PMPauli-pairs (according to his exclusion principle) act as beta-pairs to provide the correct atomic structure that Bohr could only solve for the simple hydrogen atom. This 17:07 supplies the hidden variable that invalidates the conclusion of the Bell Theorem. It also demonstrates the actual solution for the fine structure constant as the ratio of the atomic radius of a quantum level with its PaulI-pair rotational radius.
@DhruvRed
02/18/2025 - 10:39 PMWell scientists and engineers have succeeded in teleporting data over fiber optic cables using quantum entanglement so it will only get better here
@jaimedemelo6905
02/18/2025 - 10:39 PMHi Mr. Arvin Ash, I think more proper to consider that the proprieties of entangled particles, as the rest of quantum realm, there might evolve in a very deterministic resonance, consider a phase-coherent function for the case. When one measure one of the particles and learn its polarization knows the state of the other because they went synchronous, not because of any hidden dimension or anything spook, but because they are twins living within limiting external an internal parameters. By the way, the superposition states and probabilistic math are useful due our limits.
@starwaving8857
02/18/2025 - 10:39 PMI still donât agree.
@elicthanks7578
02/18/2025 - 10:39 PMwhen I was a child I used to think that light behaved like that, when I would switch the light on I didn't imagine light as being something that would come out of the light bulb and travel all the way into my eyes, then I learned some physics, and found out that it is in fact traveling, and I realized how absurd it was thinking that something can go somewhere instantaniously. however now I am being told that in a way it is possible.
@michaelpipkin9942
02/18/2025 - 10:39 PMThe Universe doesn't choose or do magic tricks like make things appear for you. Whatever your measuring is already there. Just because you don't know which one it is, doesn't mean that it's opposite doesn't exist until you make up your mind. That's on level with "If I close my eyes, you can't see me…"
@MADHEVAR-sp2gx
02/18/2025 - 10:39 PMHow about the concious level of people, that take some to their origins,,,?
@kwgm8578
02/18/2025 - 10:39 PMGobbledygook. Illusion. Self hypnosis. Bullshit. Spooky action at a distance. Denial. Call it what you want. You have demystified nothing.
@userious
02/18/2025 - 10:39 PMOk now i know less abt quantum triangle
@Rinchen-ov4wy
02/18/2025 - 10:39 PMAmen + đťđđ˛
@CoryDoucet
02/18/2025 - 10:39 PMIt's depend if your left or right brain or antimater or quantum entanglement its case base if their alien or earth on each opposite opposing opposition I have oppositional definate disorder
@benpierce2202
02/18/2025 - 10:39 PMI like your Stern-Gerlach "trough" at the beginning of the second section.
@christopher-Ssi
02/18/2025 - 10:39 PMHow does one entangle pairs?
@Milad-1995
02/18/2025 - 10:39 PMâď¸ A question:
If we measure something like the position of the first particle and THEN the velocity of the second particle, what will happen to the position of the first particle?
@Alex_B1239
02/18/2025 - 10:39 PMBluetooth physics
@Jazzie777
02/18/2025 - 10:39 PMGreat video, however, the time it takes two scientists to measure the entanglement of two atoms, will never change the actual time it takes these atoms to communicate with each or interact.
@djncredible503
02/18/2025 - 10:39 PMQuestion is the speed of thought faster than the speed of light
@vincecastillo6554
02/18/2025 - 10:39 PMF you for attempting to take the paranormal out of the paranormal. Youâre destroying facts with mundane explanations you donât understand. Youâre doing an injustice to the word by stealing the wonder of astonishingly facts we still havenât figured out. Come back when itâs demystified.
@donclavetd9415
02/18/2025 - 10:39 PMWhat are the practical implications of quantum entanglement besides quantum computers and AI?
@raffaelemani6520
02/18/2025 - 10:39 PMbest explanation ever! Thank you!
@cryptocraigmillerminer9060
02/18/2025 - 10:39 PMWhat can come out of deeper understanding, more experiments and actually using quantum entanglement and quantum entangled particles?
I could see…
Force fields
Teleportation
New propulsion systems
New propellants
Instantaneous long range communication
Many breakthroughs in computing and electronics
Huge improvements on data transfer, storage and processing
What else?
@techbricks5300
02/18/2025 - 10:39 PM"Particles can share opposite super positions". I would make very short physics videos đ
@propergunjah8726
02/18/2025 - 10:39 PMHow in the times of Einstein did they manage to measure the position of entangled electrons?
@8RBrain
02/18/2025 - 10:39 PMOK particle 1 and 2 are entangled left glove /right glove. Got it. Nobody ever says particles 3,4,5,6,……. Is 1 entangled with 2 and 3,4,5,6…… at the same time as 2 is entangled with 1, and 3.4.5.6.….
if 1 and 2 are left/right and 2 and 3 are left/ right then at the same instant 2 and 3 are right/right??????
@GaryOhighO
02/18/2025 - 10:39 PMYou can imagine dimensions intersecting at right angles that form corners where they meet. Now consider that you can draw a one dimensional line to connect any two points in higher dimensional space. Along the corner where space and time intersect, it may be possible to trace a line that can choose one dimension (space or time) while ignoring the other. This could explain entanglement using relatively simple math. If so, what happens as you move away from the corners and into the macroscopic realm? You can easily expand on the idea which may lead to interesting insights. It's just a guess but that's my thought
@mariomac9667
02/18/2025 - 10:39 PMEntanglement suggests FTL and in our perception means in one place and not in other but, everywhere at the same time, as if time doesn't play any role. Think about hypersonic boom before the jet appears..Breaking light barrier would be humanity's biggest surprise if we could reach
@komentator4956
02/18/2025 - 10:39 PM01:54 why alice and bob? not adam and bob?
@bedluhailemichael2425
02/18/2025 - 10:39 PMCredentials are assuming that you â¤close â¤your â¤eyes â¤and llet â¤us â¤lie. That was â¤the â¤â¤plan of the elites. â¤
@bedluhailemichael2425
02/18/2025 - 10:39 PMThought entanglement would also have been working since the birth of human beings!!!!";^_= and corpuscles are also able to entangled with the environment and with in.
@andersjohansson1889
02/18/2025 - 10:39 PMNoone really knows how it really works. Click baiter!!!đđđ