How to Teleport Schrödinger's Cat
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- čas přidán 14. 03. 2017
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Previous video on No Cloning: • The No Cloning Theorem
How to teleport Schrödinger’s cat: this video presents the full quantum teleportation procedure, in which an arbitrary qubit (spin, etc) is teleported from Alice to Bob by way of a pair of particles entangled in a bell (EPR) state and the transmission of information via a classical channel.
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REFERENCES:
No Cloning video: • The No Cloning Theorem
The No-Cloning Theorem: en.wikipedia.org/wiki/No-clon...
MinutePhysics on Schrödinger’s Cat: • Schrödinger's Cat
The History of Schrödinger’s (& Einstein’s) Cat: nautil.us/issue/41/selection/h...
Original Quantum Teleportation Paper: citeseerx.ist.psu.edu/viewdoc/...
Wikipedia on Quantum Teleportation: en.wikipedia.org/wiki/Quantum...
Calcium ion teleportation: www.nature.com/nature/journal/...
Teleporting a 2-qubit state: arxiv.org/abs/quant-ph/0407219v3
Multi-level teleportation: arxiv.org/abs/quant-ph/0106018v2
Scott Aaronson blog post on Teleportation (& Free Will, etc): www.scottaaronson.com/democrit...
Classical Teleportation: arxiv.org/abs/quant-ph/0107082
Blog post on quantum vs classical teleportation: marozols.wordpress.com/2012/0...
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Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!
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That was a very very accurate explanation of how quantum teleportation works! Even with the "questions" analogy. Bien jugado, Henry.
Although I was expecting to listen something: because the teleportation can't be completly perform if the Earth's scientist doesn't tell the moon's scientist the answer of the question he asks to the original cat, *faster than light quantum teleportation is impossible*. He needs to send to the other guy that answer in the traditional way.
QuantumFracture Y yo justo mientras veía el vídeo estaba pensando en si harías un video sobre teletransportacion..
you know physics has become too complicated when beaming a superposition to the moon becomes "traditional". haha
... I totally completely understood what was said there *not*
QuantumFracture me duele el cerebro x_x ahora explicalo tú a tu manera :D tus vídeos igual son muy buenos
The name "quantum teleportation" really screws people up. It should be called quantum entanglement transference or something. It would only have something to do with transporting people or things if their quantum state was important to their makeup. Any quantum entanglement inside people is constantly being destroyed, so the assumption that to transport a person, you need to use quantum teleportation to include all their quantum states is quite dubious.
Sometimes I like to pretend I understand this stuff.
Imagine a guy has a closed box and asks "Is there a cat in here?" and you say "Maybe?" and then the guy never opens the box.
congrats now you're up to speed.
ehhh its a bit easier to imagine this:
While blind folded, you push an object onto the floor. There is no sound, and you do not know if it is broken or not. The whole idea is that until you check to see if its broken, it is in a superposition state of being both broken and not broken. When you take off the blindfold, the universe kinda makes up its mind and decides on whether it is broken, or its not broken.
Example. you drop your phone, is the screen cracked or not. how do you find out. you look, thus collapsing the states of the screen to broken or not. hearing the screen break would be an observation causing the same results as picking it up to look does
Potato The Turnip How does it depend on weather I check it or not? like is not it already broken when I pick it? I mean that sounds like a magic like phone is not broken but when i pick it up it becomes broken?
MinezGio Not exactly. Superposition in quantum physics is a state that is completely separated from our intuitive understanding of the world around us. Imagine that: A blind man is trying to figure out the position of a candle that is somewhere located in his room. The only help he's got is a ball he can throw at the candle to tell by the sound where exactly that candle is located. However, the moment he finds out, the position of the candle has changed because he threw a ball at it. The moment we try and meassure the state of a quantum particle, it takes a certain position, even though it behaved as if it had multiple positions before we observed it.
Friend: Do you understand Quantum teleportation now?
Me: Yes
Friend: How much did you understand?
Me: Yes
The wave function collapsed into yes, even though there is a chance that it collapses into no
no
Me: Yes/No/Maybe
Friend: Do you understand Quantum teleportation now?
Me: Moonfly
|yes>+|no>
If Amazon ever uses this teleportation method, there’s going to be a lot of situations where I have my package but I also don’t have my package.
just dont order any animal
@@jobhoevenaars7298 but that's not possible. I NEED to order animals. They taste way too good for me to stop
What if you have your package but you don’t have the things inside?
@@saivarshithpaluru7684 do you eat them raw? Or very raw?
the thing I'm wondering about this kind of teleportation: What can we do about the matter that ends up rearranged on the transmitting end? According to this, it could basically be any arrangement of particles, which has me concerned it could be unstable or in some way hazardous
11:03 "after we beam them the message..." this is a pretty important bit that most people miss and instead think the teleportation can be done solely by manipulating the entangled pair without transmitting anything else. It deserves more attention I think
"YES, WE GOT IT! We can now transfer people to locations faster than li-"
The universe: woah woah woah, slow down there buddy, not so fast. You won't get away with this, fuck you!
@@Xnoob545 "not so fast" i see what you did there
its like transmitting the full depth of two probabilities for the cost of transmitting two bits of data
@@raspberryjamSo for an object made out of a bazillion atoms you need to send a bazillion data points
Schrödigers cat walks into a bar, and it doesn't.
lol
Beth Xx
Ima use that now
go on....
jacksfilms copy m8
Beth Xx
IT IS SCHRÖDINGERS NOT SCHRODINGERS
I won't even pretend to understand this.
@@Gandhi_Physique What does cat dead times flea alive equal to?
How does one find the product of the mortality of two animals? Who knows. Obviously, he's using some strange analogy, but it still did a pretty bad job of helping me understand. This is particularly apparent when you compare it to his more recent series on relativity which was excellent.
@@ASLUHLUHCE basic elementary math. it goes as this : (a + b) * (c + d);
"Ok, time to teleport a cat"
**cat meows**
"Fuck"
This is why it's very important to have a sound proof box.... Or a mute (eh, non-verbal? Non-communicative?? Oh no, I don't know the right term to use... Please don't cancel me!) cat.
@@NeorecnamorceN _cat scratches the box aggressively_
Teacher: "The test isn't that confusing"
The test:
Lol
Didn't even understand enough to get confused
I think this is the only channel where "flea", "moon" and "quantum superposition" can be placed in the same sentence in a way that seems totally normal
Well i wouldnt say normal
The scientist asked the physicist what quantum superposition was while his cat ate a large flea.
@@op-fb2cm thhtas not complety normal
What is this moon flea’s quantum superposition
IKR
me: i think i understand that par--
brain: what?
me: wha--
brain: exactly
god i just... i just agree
* *visible confusion* *
A superposition of understanding and not?
This is what happens when you haven't even passed eight grade science and mathemathics and algebra and start trying to understand whatever this is
Me : looks away for 0.001 seconds
“ SUCCESSFUL TELEPORTATION “
me : wtf
After he said “If only we had some way to get there faster...” I genuinely thought he was gonna continue with “...Speaking about that, let’s talk time travel now !!”
me too
All I heard was: "cat,dead,moon alive,b,-b,cat dead alone"lol
Moe 999 hahahaha
Lol
And flea
am I the only one who thinks that using quarks instead of cats and fleas would've been simpler?
Yes.
nah i agree. using macro-scale objects as an analogy for energy fields is confusing for me as well
using coins is ideal IMO. heads and tails are easy to keep straight, but are still macro objects, and won't make people feel like they need any understanding of quarks.
I agree but not sure it would have had as big of an audience and a lot of people who aren't versed in physics may have been less inclined to follow.
But yeah, I got confused by this at points and had to stop the video and check what he'd said but wouldn't (well, probably wouldn't) have had to had it been about elementaries in the first place.
Quarks can't exist in isolation, so no that wouldn't be simpler.
Yes, IKEA furniture is definitely teleportation, I can confirm
Then confirm
"Beam me up, Scotty!"
"Yes, Captain, but you should probably watch this first."
"Ah. Hmm. You know, on second thought, I'll stay here."
I've slowly come to realize the MinutePhysics logo is the gravestone of all the dead cats from these videos.
Woah !! Just observed now !
in 2020, i watched this video and was fascinated, even though i didn't understand much. two years and a lot of research later, i'm studying to get into uni to study physics. this video was one of my wake up calls. thank you so much for that.
Oh, wow... I thought I understood quantum entanglement with the coins on different sides of the universe, but the gunpower and cat analogy explains it a lot more. Thanks!
huh strange. I didn't realize I lived near a super massive black hole causing what was a minute to MinutePhysics to become 14 minutes and 12 seconds to me...
M167641 technically it's still minute physics because the video is in minutes
M167641 maybe it isn't minute as in time rather minute as in covering a very small part of physics in every video
Shouldnt MinutePhysics live close to the black hole? When near a black hole, time slows down, so that when 1 minutes passes there, somewhere else further away 14 minutes pass.
Light-minute? oh wait... that's distance.
Ever seen Minute Rice? That stuff takes like 5 minutes yo.
Imagine all life as you know it ceasing as every molecule in your body is painfully erased. Meanwhile, thousands of miles away, an exact clone of you with all of your memories goes "Wow, I successfully teleported! And it was completely painless too!" That was always my biggest fear of teleportation.
Yeah, and even though in the video he says it isn't cloning, the teleportation of this video seems to be one of those, where the original is destroyed/transformed.
Well then you will have to define if a jump in the stream of consciousness cause the consciousness to be no longer the same
@@kjl3080 what do you mean with jump in the stream of consciousness?
*That doesn’t happen. The same you will teleport there. That’s why people call God good.*
*Your consciousness teleports as well. That clone shit is ridiculous. I’ve already seen my neighbour teleport twice, but she’s playing dumb. She knows I saw her do it too. She’s still the same person - no clone.*
The real challenge is to think inside the box
I think this just answered a question i had with a game for a long time now. The game in question is Virtue's Last Reward, if anyone want to check out, so here's the thing, sorry for a bit of spoilers btw, in the game there are two characters that are cryogenic frozen to the future, and much later, they say that for them to go back for the past is through schrödinger's cat, the game is almost all about it and it plays around other theories too but i never had an answer for those two characters and now with this video i think i get it now.
What I understood : writing questions and their answers makes things teleport
Specifically, it makes the answers teleport
But only if you have magically connected objects
apparently so
My friend: what are you doing
Me: oh just a bit of quantum physics
qdqdqipbpbp Friend: No, i meant what are you doing with that cat and...., is that a bomb 😐?
No a qbit of Quantum mechanics
No kidding, my friend does this. He showed me this too. Quantum physics is his hobby...
@@eliaspeter7689 quantum physics is he's HOBBY? what does he when he busy?! DISCOVER PLANETS?!
I'm a second year physics student and that was such a neat explanation of quantum entanglement!
well thought out!
Any sufficently advanced technology is indistinguishable to magic.
So yes, Magic.
wassup048 Only to those who cannot tell the two apart.
@@aperfectlynormalinternetus6715 ``sufficiently advanced`` aka u dont even know wtf is going on
@@aperfectlynormalinternetus6715 If you understand magic it does not cease to be magic. You start to become a wizard who understands magic.
sooo, in my cats eyes...im a wizard? awesome
That’s a line from Thor!
please don't send me to the moon...
Schrödinger's Cat bai
Don't worry, you would stay on Earth (not intact).
Yugo Pellegrini but I would also be on the moon too
being in a state of superposition?
johnson SC of course.
This feels like algebra, but instead of messing with numbers you're messing with particles. Feels..odd, but its really cool that this actually works!!
I appreciate the closed captions very much. Even though I'm not deaf, it still helps (and makes me cheer in happiness because having captions means more accessibility!)
14 minute physics ?!?!
I know right !?
MedicEne it's not called 'one minute physics'. The video is less than an hour
Sorry I dont understand whats an hour got to do with anything ?
I wish it was "Hourphysics" XD
+ mini minxie SAME!! Love this so much
I understood till 0:00 later on everything went over my head...
I would understand this astronomically more with particles.
The cat and flees feels like a crazy indirect way of explaining that I have to try to imagine how it was supposed to be analogous to particle behaviour
Every time someone in Harry Potter apparates, he 'dies' one time
Can someone teleport my brain back? I think I have lost it in the middle of the video.
EXsnowcat Is it dead or alive?
Jussi Marttinen both
I will have to deliver it inside a box with a dead flie and a living cat
Jussi Marttinen .
Jussari both
A few billion fleas were harmed during the making of this video.
liek if u cri evrytim
and also harmn't
A few billion fleas were in a superposition of harmed and not harmed during the making of this video.
good
Good.
Love it! Thanks 🙏🏻
This flew completely over my head
Instructions not clear - Cat and flee have merged as one.
Catflee is not amused.
*flea
Sorry for being that guy
That is a nice one!
Tom M But he's good at leaping off the wardrobe sex!
Ehhh...I rip a hole into the fabric of the universe.
Help?
@@iamacey Don't worry, I was just about to be that guy also
They are all dead on the moon with no oxygen.
mirapo 23 u got selected in google
u got shit English.
Puggles¿? U
"And what if they were already dead before going on the moon?" That's what the schrödigers cat is you never know till you open the box.
Harvard research facility needs you!!!!!
I love these bass solos
Thank you very much, dude.
I misread the title and thought it was called “how to teleport a stranger’s cat”
x)))
Did you get your answer?
jqawminufwcweiokviirvj7j
I misread your comment and thought it was " how to teleport a stranglers cat"
Lol
Brain.exe has stopped working
.exe? Well, there's your problem. The mind is built on Unix.
Have you tried turning it off and on again?
Downgrade to windows 7. It will work fine.
Mine too
Well I have found my owner
Very intriguing.
4 years later, it's been teleported into my recommendation list. Time travel works!
When *minute physics* needs 14 minutes to explain teleportation only on a theory level...
Yes, it is an explanation in minutes and relatively short for something that could have taken an hour to thoroughly explain. What’s your point? He successfully communicated to a broad audience without making it either too detailed or too watered down, so that people could readily connect, get the general idea, and themselves look up further details. That’s a successful video, esp. considering the otherwise generally content-void rubbish on CZcams like ‘life pranks’, ‘beauty channels’, gossip… about other CZcamsrs, the bazillion Minecraft let’s‚ plays, the idiots who spend way too much time over interpretting trailers or mere teasers of the next Game of Thrones season, etc.
His point is that teleportation is a very big topic
Still don't understand.
joseph jackson
speed the video up 14 times
You know a scientific theory is different from a theory you have right?
Year 2118: *First teleporting of a human expirement*
Also year 2118: *the human collapsed in a superposition, expirement failed*
in year 2118 b.c. : where i am?
Year 2118: First successful teleporting of a human expirement
Also year 2118, same experiment: the human collapsed in a superposition, expirement failed
@@HyperGnome only 98 years to go.
What I don't get:
4:05 to teleport the cat to the moon, we need to get it entangled. To entangle it we need to get something already entangled on the moon. That's almost a catch 22. If I'm not mistaken, this means it's impossible to teleport somewhere we haven't been before. So we could never teleport somewhere really far away, like a neighboring Galaxy unless we went there first. Meaning we'd have to send a bunch of well-trained astronaut volunteers unrelated to another to that said Galaxy, and have them breed in space and raise/train their kids (and hope they catch on and are willing to accept their new lives and understand it's importance) and repeat that cycle until they reach the galaxy to make the observation to teleport whatever it is that will allow them to start setting up the new civilization. Oh, and the entire time, nobody can know what's in the "box" (or state of, w.e.) or else it will all be for nothing.
This is the first Minute Physics video I just can't get my head around.
"I used fleas so that the math would be easier to follow." Is definitely a quote I want to use some day
13:15 This means: After sending CAT to the Moon, I might have DOG on Earth now.
Well this is an absolute win
or CAT.
The game journey to the savage planet kinda tackles this subject. Whenever you teleport it’s known as disassembling you and reassembling you somewhere else. Also when you die the ai tells you that you can only die around 50 times before the imperfections of the cloning process would kill you
I'm still trying to understand how our knowledge of the state of something, makes the entanglement collapse, much less how that makes things teleport.
To know the state you have to make a measurement by interacting with the particle. That makes it collapse. It’s teleportation of data. Sort of like the instructions to reproduce the object exactly. Exactly how we could ever hope to describe every particle in a macro object and reproduce it on the other end, I’m not sure.
disassembled my cat in order to teleport, didn't work. instructions not clear enough.
Sara Jade you were supposed to put the cat in a box with an explosive devise and a flee, that's why it didn't work. Duh.
Keep trying. There's always another cat out there.
Sara Jade Damn those Ikea cats!
Sara Jade says minute physics
sees video is 14 minutes long
14 minute physics
“Dang I’m short a few atoms for my experiment”
*friend on the other side of the planet*
“No problem my guy, beaming them to you now”
Or not
Such a genius. Such great information expanding my outlook on the vast world of science. But he said Vica Versa...
This could have important implications for how we deal with long term sea level rise
Imagine if it was possible to simply entangle some particles on the iceberg, send one of those particles to an asteroid, and pull the lever. An asteroid doesn't flood a city.
Yeah but then you would have to deal with the pile of particles that were previously an iceberg and still have the same mass.
Instructions unclear: teleporter teleported
Send instruction again: teleport a teleported teleporter
@@friedec3622 failure: teleported half of self into the future.
10 years later.
Breaking news: Half of the teleporter teleported from the teleport appear out of nowhere. With the cat and flea inside
@@friedec3622 failure: too many fleas to process teleportation, unreasonable and unncessary self-destruct mode activated.
@@friedec3622 sadly teleportation is not complete safe
what if the cat exploded and the bomb did not die?
the your a dum
BobZ i'm stuck in a nervous laugh because of you x)
Wut XD
Jenny HMMMMMMMMMMM
😂
2:30 if minecraft has told me anything that cat can survive the explosion
It's the scariest scenario: at the exact instant you get killed, an exact clone of you is created who will have all your memories and swear he's you...
0:12 IKEA is teleportation now
I have a very strong suspicion that this could have been explained much simpler. And not in a Deloren transporting you back to 1955 kind of way, either.
I mean this is about as simple as it gets for quantum teleportation
I'd be interested in you covering outer wilds!
This has been an excellent explanation of quantum computers and operators. Great job
just asked a box some sneaky questions and teleported something
hahahaha what the fuck.
I used flies to make it easier to follow
My brain:
*NOT STONKS*
I can just imagine stepping onto a teleporter to teleport to Mars, waiting a couple minutes and suddenly exploding while simultaneously instantly assembling on mars.
So at 12:54 you mention after the teleportation, what was originally a cat is now a pile of each molecule that made up that cat. Does that mean that THAT pile of jumbled cat molecules is what we have to start with and send to the moon before observation? (Assuming we were trying to teleport a cat to the moon)
I CANNOT IMAGINE PUTTING A CAT IN A BLENDER
a blended cat is a very delicious breakfast...
+Bob Jenkins i prefer boiled dogs for lunch
You lack imagination then.
Xi H Then put a cat in a blender if you cant imagine it. trust me there is nothing like a cat screaming in pain trying to break out of a blender and you hold down the lid and watch with a raging boner as it is. screeching as it dies a painful horrible death. makes you feel alive
I beat the fuck out of my dick so god damn hard when i watch cats get blendered
I honestly think you're complicating it. What's wrong with using particles? I think that would be easier to comprehend than cats and fleas. People with no background in this will only be confused and lose track.
flawmore It’s The Internet. Be realistic.
flawmore
Because it's not the intelligent era.
It's the Internet era
When I was watching this，( a guy studying 11th grade physics) thinks that this is more about probability rather than quantum entanglement
I think you lack comprehension of the amount of destruction of cats that is necessary.
Well everyone has a different perspective. But yeah, I think particles would make it easier on myself to understand.
Bro this knowledge is super
Quantum entanglement is truly fascinating true phenomena more than any fiction ever created
It would be much easier to understand with electrons.
all the complexity almost killed value of analogy.
the thing about explaining this sort of science is it doesn't really matter what words you use; so if it matters to you .. then you might want to think about your strategy for understanding science.
There is nothing "easy" about quantum mechanics. Even the most renowned scientists admit they don't fully understand what the fuck is going on in that domain.
No it wouldn't be easier at all for people that don't know how electrons work
Completely agree, the cat and flea made it impossible to understand
akshay rathore I agree, especially because it implies to the layman that you can kill a flea on the moon by telling an astronaut whether a cat is dead or alive.
My brain was brusted while watching the mathematics part
i have so many questions i cant even think of
The first one may be possible when moving trough a realm of space time so you are basicaly in superposition of two places
Now we just need to know how to time travel...
another 15 minutes video about that please
just call the Doctor. he'll explain it to you.
we only can slow time atm
Crazy3lf He's done that already. To ELI5, slowing down time is really easy, speeding up time is really easy, and going backwards is really, really, REALLY hard.
It's basically a big ball of timey wimey.... stuff.
well he did just tease/confirm thats what his next video is gonna be
I put my cat in a box for a day. It didn't teleport.
(Jk if anyone thinks I'm dum)
your a dum
Learn to spell the word ‘dumb’, before you use it.
+reelle Zahl
I think this was supposed to be a joke. If you read GladiatorGator's comment he also said (Jk if anyone thinks I'm dum)
So Augustus probably made a joke about the word "dum"
GladiatorGator You need radioactive particles first.
I know im a bit late to this but i can't help but point a few things out.
1. When you mentioned what would happen to the original "CAT" once it was teleported you said it would be in a superposition with every possible three letter configuration but i don't see how that is possible since the original "CAT" was made up of the three letters c,a,t and in order to have any configuration of letters that contained letters beside c,a,t that would imply the teleportation process would have created new matter which is impossible since we know that matter cannot be created nor destroyed only change form. What would actually happen is the original "CAT" would enter a superposition of every possible configuration of those three letters c,a,t.
2. This would imply there is a chance the original "CAT" would remain in its original configuration even if the chance of that happening is extremely low, which would mean there is a very low chance that after the original "CAT" has been "teleported" by reconfiguring matter somewhere else to reform into the "CAT", the original could end up not changing at all as if nothing had happened while the teleported version forms essentially creating an exact copy in other words a clone which earlier in the video you stated is impossible.
3. There fore either it is possible to clone using this method or the method is impossible to begin with and this doesn't even take into consideration the moral and or philosophical implications created by using this method.
4. This entire method is not necessary because using wormholes we can just connect two points in spacetime allowing for instant travel in other words teleportation as theorized by Einsteins theory of general relativity rendering this entire process redundant to begin with.
If i missed any thing or am wrong about something please correct me but as far as i know everything i have stated above is correct.
"You mean it's working? For real this time?! Cause, i still have nightmares about that cat."
When I was younge I would think my tazos/Pokemon cards would change throughout all the possibilities until I opened them and broke the bond...
duble d I used to think that with my yugi oh cards. Still do with scratch tickets.
Shrödinger's pokémons.
Yessss! I do this too! I do not believe in a pack of playing cards that the order of which the playing cards are sitting in is final before you have picked one up and looked at it. You might aswell assume that every card is blank and then decideds what its going to be once you pick it up and look at it. I do believe in a sense that you can jinx something. I feel like maybe the card could have been maybe a 5 but because you asked "please be a 5, please be a 5", its going to decide well since you wanted me to be a 5 and were so demanding, im going to change myself to a 7 or what have you. 😂 so I try to keep my mind as blank as much as possible like when I want something specific like in a game or even a scratchy ticket or the odd time I have played on the pokies. Well im not a very lucky person so im not sure my blank mind thinking is working 😂.
The problem with this is that the order is predetermined. The cards were put in a certain order in the box. With the cat, it’s a hypothetical thought experiment where there is no possible way to know whether it’s dead or alive.
Ah but say that the deck was somehow completely randomized, with no way of knowing the starting conditions, and remained unobserved until opened. Then would each card be a superposition of all possible 52 cards?
just checking if this was made on april 1st
?
it isnt a joke, its just quantum physics
For the first me who'll be Transportated is having different time and reference frame . Is it not a different property to the copy?
Well, 100km would still be useful as a method of communication.
Just 1 pair of 8 bit sets could be used to transfer an entire byte if the timing is reliable. Otherwise we need an additional clock bit. Depending on the reliability more for parity.
Then it could be used to transfer bytes at whatever rate you can reliably change all of those.
I get the feeling you really enoyed making this episode!!!
me2
It is good that you concluded that this is a teleport of properties, not objects, which will never be possible unless there is a prefabricated superposition in the target. But Schrodinger's cat, as mentioned at the beginning, is exactly how it can never work in the macro world, which Schrodinger pointed out by his model cat.
This video is in my watch later list from 7 years ago. I was a highschool freshman student, studying science subjects, passionate in science indeed. I am now a university bachelor graduate, majoring in arts focused on film and video production. I decided to start finishing my watch later list from oldest to newest. I understand absolutely nothing in this video.
3:15 if you can separate entangled particles over a long distance, say light years away. What if we changed the state of one particle while the particles are separated? Would it change the state of the other particle instantly? (Say one particle was spin up, therefore the other was down. Then we change up to down, would down change to up instantly?) Or would it take a light year. Or would the other particle not even change?
Wow. What an accurate and fun way of explaining Quantum teleportation and switching to Bell basis and performing a Bell measurement! wow! You deserve a science communication award (if one exists) for just this video.
Also loved the state with a big tombstone (dead cat) and a little tombstone (dead flea). funny!
0:16 IKEA furniture = Teleportation
0:00 Video starts.
14:12 Video ends
finally, after all these years, with the help of this tutorial I'll be able to teleport bread
Do not teleport bread and we'll be fine
The cloning you're talking about in the intro is similar in principle to quantum entropic cascade failure isn't it?
This is why Einstein called quantum entanglement "spooky" lol
One point I would like to emphasize is that you have to transmit some kind of classical information (here the result of the indirect measurement). And that is what prohibits any kind of faster than light communication.
excellent point
Plasmaboo I wouldn't go as far as saying that it completely ruins the point of teleportation. Sure, it doesn't correspond to what we commonly picture as teleportation, such as an instant travel mechanism. However this method here may be the only sort of thing to make lightspeed travel actually possible, which in itself is actually an incredible achievement opening huge possibilities (that will, alas, most likely always remain in the domain of sci-fi when it comes to transporting actual people...).
Just quantum teleport the information. Easy.
To be useful, it hasn't got to be able to transmit information faster than light. It makes copying the state of a quantum object possible, which can't be measured at all. (cause the moment it is measured, it collapses into one of two states, but there's no way to get the probabilities of each state, which is what quantum computers use for calculation)
So what if we can't do faster than light? We still would be able to transmit matter at significant fractions of it thanks to communications tech. Imagine no more rockets blasting off from the surface of the planet to space, and instead they just get teleported into space directly.
hey if we can have tangled particles does that mean we could have faster then light connection?
Instructions unclear, created a new species named fleats.