This episode has been brought to you by our super generous supporters on Patreon
Researchers in China, just teleported an object into outer space
What it wasn't a person or a dog or a molecule?
It was the photon well or information describing a particular photon so how can this be described as teleportation well?
I don't know but good stuff producer
Matt weber knows and allow him to explain that quantum teleportation isn't really teleportation at all, but it's about making an unhackable internet
But first he's going to talk about a paradox
Albert Einstein didn't like Quantum mechanics
He thought I was a blob theory and in
1935 he wrote a paper describing a paradox that seemed to bring everything about quantum mechanics into questions quantum mechanics is the study of the
very smallest aspects of our universe
Atoms electrons quarks photons and it reveals some unintuitive even contradictory facets of our universe for instance
Measuring a particle changes the particle this is called the observer effect the act of measuring a phenomenon irreparably
changes or
Influences that phenomena to observe an atom we often have to shine a light on the photons in that light interact with the particle in
a way that affects its position or momentum or Spin or any number of
characteristics in the quantum realm using photons to observe an atom is akin to using bowling balls to count the pins at the end of
A pitch-black bowling alley as a consequence you can never know all the properties of a particle with any certainty because the act of knowing
Affects the outcome the observer effect is often confused with the idea that consciousness can affect or even create reality?
But it's not all that supernatural because the observer effect doesn't require consciousness at all
Photons running into an atom will produce the same observer effect whether or not conscious humans are driving those photons to observe in this case
Merely means to interact in other words. We can't be detached observers in quantum systems
We are always active participants mucking up the result that's what albert Einstein didn't like to him this inherent uncertainty
The light of flaw in quantum mechanics that must be remedied reality could not be so unreliable or as he put it
God does not play dice with the universe and nothing illustrated the weakness of quantum mechanics
More than the Paradox of quantum entanglement at quantum scale sometimes particles can become connected in a way that measuring the properties of one particle
affects the other
Instantaneously no matter how far apart. They are in Einstein's theory of relativity
Nothing can travel faster than the speed of light
Quantum
Entanglements seem to violate this because if one particle is entangled with another and any change on one that happened to his twin some kind
Of communication must be happening between them otherwise, how could they affect each other?
But if it happened instantaneously regardless of distance then that communication would have to be traveling faster than the speed of light which is impossible
Thus a Paradox Einstein famously derided this as spooky action at a distance
to Einstein the whole field of quantum
Mechanics seemed as sketchy as the supposed quantum entanglement and einstein spent the rest of his life trying to correct by the perceived
shortcomings of quantum mechanics without success
Because there was nothing to correct in the years after einstein's death quantum mechanics has been proven right over and over again although it remains
Stubbornly unintuitive even Einsteins quantum entanglement Paradox has proven to be a real phenomenon
It's not a paradox at all while entanglement does happen instantaneously
No information can be transmitted between the particles faster than the speed of light, but information can be transmitted
and that's just what a team of researchers at the university of science and technology in Shanghai did in june of
2017 while it has been widely described as teleportation
What the researchers actually?
Accomplished was the transmission of information between two entangled particles by shooting a laser through a specialized Crystal the photons emitted
Become entangled so once one photon is measured in the entangled pair the state of the other is instantly known by using their quantum state
as the carrier signal information
Can be transmitted between these photons this has been done in labs all around the world but never at this distance the researchers in China
Sent entangled photon particles to a satellite in orbit 1,400 kilometers above the Earth
They then entangled the ground photon with a third photon enabling them to send its quantum state to the satellite-based photon
effectively replicating the third boat on in orbit
But the third photon wasn't physically moved to the satellite only information about its quantum state with and reconstructed
So it wasn't teleported like Star trek
But the real breakthrough here isn't teleportation
it's
Communication a quantum internet based on entangled particles would be nearly impossible to hack and we can thank the observer effect
For this if someone tried to eavesdrop on one of these quantum transmissions
They would essentially be trying to observe the particle and as we know this changes the particle a compromised transmission would be instantly recognizable
because the particles will become unentangled or the transmission would be destroyed entirely kind of like trying to observe a rival bowling league pin by
Throwing your custom monogram bowling ball at them a quantum internet would be a nearly 100% secure communication screen
No one without access to the entangled particles revealed hackett
And if someone did gain access to an entangled particle it would be immediately obvious because your particle would be missing and your internet would
Be down So you can see how this could be a value as more than a photon
Teleportation device it took researchers over a million attempts to successfully entangle just over 900 particles because the photons have to pass through our atmosphere
There's a good chance. They will interact with another particle and thus be observed breaking the entanglement and ending the transmission
So we're still a ways away from a fully functional unhackable quantum internet
But could we some time in the distant future use the same technique to teleport actual objects or even people theoretically? Yes?
but that would involve
Entangling every particle in your body with an equal amount of particles in another location every state and position of all your particles would have
To be scanned and transmitted to the other location the awaiting entangled particles would be imbued with the transmitted information
Instantly assuming a state identical to the original particle
This is essentially what happened to the photon, but now we're talking about every particle in your body
But don't get too excited quantum teleportation is subject to the observer effect to the scanning process that measures all of your particles would simultaneously
Change all of your particles in essence changing the original you into a pile of unrecognizable
Quantum goos you would cease to exist in one location and appear in another
Exactly the same just with a whole new
Complement of Particles whether or not you'd still be you is a whole other debate
And that's spooky enough to make even Einstein keep his distance
so what do you think will we ever have teleportation will you still be you if you have all of your particles destroyed and then
Reconstructed I know I would opt out of that if someone asked me to do that let me know in the comments
What you think and don't forget to like and subscribe and share this video so that it may be observed by as many conscious humans?
As possible special thanks to our patreon subscribers without you. We wouldn't be able to do this show at all
So if you like what we do here consider heading over to our patreon page and supporting the show thanks for watching
Now teleport me out matt when you're editing this tell me teleport me
Không có nhận xét nào:
Đăng nhận xét