Quantum Entanglement: Faster Than Light Technologies

Our first installment of a new series looking at Faster Than Light, or FTL, concepts and technologies. In this episode we review the basics of Special Relativity and some misconceptions about it, then look at Quantum Entanglement.

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Music:
"Doctor Who - Into the Doctor" by PJM25595//Dalekium
"Mario Bava Sleeps In a Little Later Than He Expected To" by Chris_Zabriskie

[nphlelps]

Please don't keep the videos shorter. You have so much to say about each subject, and I don't want any of it cut down! Great videos!

[DaveGell]

BTW, Isaac, I have a pretty severe hearing loss. But, I have NO trouble whatsoever understanding you.

[Baleur]

6:40 OMG of course!!! How have i overlooked this obvious thing for my entire life?
Of - friggin - course! When we say it takes 100 years for light to reach Alpha Centauri (for example, whatever the actual number is), it simply means that by OUR Earth relative time, it would take 100 years for that photon or information to reach Alpha Centauri.

But on the PHOTONS / informations / spaceships timescale, it would only take a second due to time dilation (arguable might not even take a nanosecond, since if you travel AT the speed of light, your time is as frozen as it can get, thus no perceptible time passes between your origin and destination, if we pretend there is no acceleration or deceleration need).

You're amazing Isaac. I literally never thought about that, such a blunder. Of course. Its not about how long it takes for an outside observer, its about how long it takes for the "inside" traveller. I feel foolish to have overlooked something so basic for so long. But its not helpful either when even so called astrophycisists on TV literally tell the audience "You can NOT get to a star system faster than the speed of light, it is too slow, it would take 100k years to cross the galaxy! You'd be dead!". I mean are they so idiotic that they themselves also forget to include the fact that YOU on the Spaceship would not see time pass at the same rate, if you go fast enough, you'd be there in an instant. I mean this is exactly why such misconceptions exist, because people in mainstream media that you assume know what they are talking about, are just blatantly ommiting huge factors for the sake of "simplifying". God dammit!

When you dumb down the physics of reality just to cater to masses, you CREATE misconceptions and dumb the population down instead. I wish they wouldnt do that.

[TashiMortier]

This is driving me insane :D I can't stop myself from thinking about it for hours, but my understanding of it all is way too limited I never had a single university level course of physics or anything. Still it boggles my mind that with all the insanely advanced modulation techniques that we use to transfer information through different wave lengths and all we can't find a way to beat nature on this one here. :D

[sizanogreen]

this channel is giving me tons of realism for my sci fi worlds, I'm so happy is exists.

REALISM! I can feel it in my hands AND IT FEELS SO GOOOD!!

[loganmilliken]

Wow... i finally found an actually understandable description for how this works. Thanks... I have watched probably 5 videos attempting to explain this, but they didn't speak like a human.

As always, thanks for your supreme legibility and judiciousness. I was beginning to believe this concept could only be understood by super deep mathematics or something else i couldn't obtain.

[mikeoliver]

so the speed of causality might be a better term?

[AndDiracisHisProphet]

Damn you, Isaac! I'm supposed to prepare the barbecue I invited my friends to this afternoon, and you are releasing a video....

[grnlntrn]

My wife hates the fact I found you because I watch your videos every free moment I have! Haha! Thanks so much for your time Isaac.

BTW, I know you are actively trying to keep the videos shorter, but I like the longer, more detailed videos myself. There are some of us out there! Again, thanks for all you do!

-Case

[IHcoleslaw]

Will the next episode teach us how to make a sonic screwdriver?

[BirdieRumia]

Thank you so much for this explanation! Finally someone explained this in a way that amounts to more than just "It doesn't work because it violates the First Law Of Things That Work, which says this can't work, therefore screw you." Almost every other explanation I've found before was so abridged it was basically just appeal to authority and it drove me nuts.

[rairaur]

This channel has been a wonderful thing from the very start. Thank you, Isaac!

[andreframil]

Please don't keep the videos shorter. You have so much to say about each subject, and I don't want any of it cut down! Awesome videos!

[FalcoGer]

the misconception I hate the most is that something is undetermined until you 'measure' it. which is bullshit. something (a quantum state) is undetermined until it becomes entangled with it's surroundings. Or in another word, until that state affects something else and matters in how the world reacts to that state. Which could be a measuring device.
For example, you measure your coineon and use a device for that. Suddenly in you device electrons move around, a display lights up, the photons reach your eyes, chemicals are broken to signal the light to your brain, all of that just because your coineon is either heads or tails, and different outcomes for both things.
For the same reason Schrödinger's cat doesn't work. A dead cat would not breathe, no vibrations on the box, no air molecules moving by those vibrations, the dead cat would no longer heat the box the same way, etc etc. it's long known before 'you' look inside the box. The dead cat has already affected the outside world differently as an alive cat would. Conciousness, actual measuring devices or even a human observer are certainly not needed for this. It's a bit self centered to convey that notion, don't you think?

[larspeterthomsen]

I like to think that both particles have their final (opposing) state determined at the point they were entangled, but the state is unknown until it is observed. When either particle is observed, we simply detect that state. The state of the other particle remains unknown until observed as well.
It's called the "Hidden variable theory", and it's been debated quite a lot.

[werrkowalski]

You have particles 1 and 2 in quantum entanglement, which can be in state A or B.
You have actions c, d, e, f and persons 1 and 2.
At a set time person 1 makes a measurement of particle 1, then person 2 at a distance makes a measurement of particle 2.

If particle 1's state is A, therefore particle 2's state is B, and inversely if particle 1's state is B the particle 2's state is A.

So, person 1 makes a measurement, if the particle's state is A he carries out action c, if the particle's state is B he carries out action d. If person 2 measures particle 2's state to be A he carries out action e and if the state is B he carries out action f.

For example if person 1 measures state A he carries out action c, person 2 then measures state B and carries out action f.
So action c causes action f and action d causes action e.

Can it or can it not count as a method of communication? Or maybe I missed something?

[LearnWithBahman]

Love your video and English is my second language and don’t have any problem understanding you. Thx for captions in video only for technical words. You actually have awesome and nice voice 😎

[yendorelrae]

Starting at 8:53... "The tachyon (edit in deeper/noticably different voice) "which well look at next episode" is audio awesomeness!

[njnjco]

Useful for pre determined, randomized decisions over long distances. Both parties look at their coin at a pre determined time and depending on the outcome of the coin flip they take a particular action that was pre determined. It doesn't give any information faster then light, it just decides an outcome out of two options. Say you and another person want to decide something important at a later date and don't want light lag to interfere at the moment of the decision. At the pre determined time, you and your friend look at the coin and get opposite things, so you know what each other got and you then take action based on what you decided earlier. You of course have no way of knowing if your friend actually did what they said they would and vice versa, until you communicate in some other way, but this could be one use of this "coin flip".

[adamoneal]

This cleared a lot of things up, but I'm still confused.