science is awesome because we can teleport information now. pretty soon we'll be teleporting people, too!*
*well ok maybe not
[tiny]calling all Myssts, calling all Myssts, this thread is in need of SCIENCE tattoos, stat![/tiny]
The caveat with entanglement is that no information will be teleported. You can send random signals to one another instantly, but they can only be verified at the speed of light.
Quantum entanglement will never be able to teleport information without causing a causality paradox, so there's no way it and the general theory of relativity could be true at the same time. General relativity has been borne out in lots and lots of scientific experimentation, and has a great body of evidence supporting it, so I really don't expect entanglement to ever work as a means of instant communication or teleportation.
Dammit, I was going to make this thread tomorrow! Damn you Saru!
That being said, as a good Biology major I have a healthy admiration for my lord and savior Charles Darwin. (or as I refer to him casually "my man, Chuck D.")
I'm actually reading a biography on him right now.
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Tossrocktoo weird to livetoo rare to dieRegistered Userregular
edited February 2009
Check it out, here is my layman's explanation of quantum entanglement
If the gravitational pull of a large object were to suddenly not be there, I imagine all objects orbiting it would be immediately freed from their previous paths of movement
but like Pony pointed out, it wouldn't happen like that anyway
edit: but I guess Tossrock knows this better than I do
Information can't move faster than the speed of light; if the sun collapsed into a blackhole and we were instantly pulled in, we would know about it before it should be possible. I'd point you guys at the gravitational waves wiki page but frankly it's a bunch of dense physics wankery. The takeaway is that it goes at the speed of light. Or more importantly, the speed of any massless phenomenon.
Doesn't quantum entanglement mean that information can move faster than light though?
No, no it fucking doesn't
This is why I hate it when popular media reports on advanced physics.
Here is what entanglement is:
You have a bag. You know that in the bag are a blue marble and a red marble. You take one out of the bag and walk a few feet, then look at the marble. You now instantly know the color of the other marble. You did not transmit information.
Replace marbles with rubidium atoms and color with spin and it's pretty much the same thing.
Dammit, I was going to make this thread tomorrow! Damn you Saru!
That being said, as a good Biology major I have a healthy admiration for my lord and savior Charles Darwin. (or as I refer to him casually "my man, Chuck D.")
I'm actually reading a biography on him right now.
The Economist had an article, and I knew if I didn't do it right now, I would forget.
Ok, now Tossrock has confused me further. I thought entanglement meant that you could change one particle or the other and the other would instantly change.
Oh but...oh wait now I think I get it. So, wait no I don't
Ok, now Tossrock has confused me further. I thought entanglement meant that you could change one particle or the other and the other would instantly change.
Oh but...oh wait now I think I get it. So, wait no I don't
Basically the idea is that this stuff is Religion.
Once two objects are put in an entangled state, their properties are inextricably entwined.
Although those properties are inherently unknowable until a measurement is made, measuring either one of the objects instantly determines the characteristics of the other, no matter how far apart they are.
Ok, so that makes sense with the red/blue marble example Tossrock used.
So, what good is this then?
I mean if you can't change one after they are separated to send a message or something then all you would know is the information already entered when the particles were entangled, yes? My fucking newspaper does that.
Once two objects are put in an entangled state, their properties are inextricably entwined.
Although those properties are inherently unknowable until a measurement is made, measuring either one of the objects instantly determines the characteristics of the other, no matter how far apart they are.
Ok, so that makes sense with the red/blue marble example Tossrock used.
So, what good is this then?
I mean if you can't change one after they are separated to send a message or something then all you would know is the information already entered when the particles were entangled, yes? My fucking newspaper does that.
I might not be getting this
It is no good. It is pretty much a useless aspect of the universe.
I kinda want to be around for the Zombie Apocalypse, but at the same time I don't want to have to deal with the aftermath of the Zombie Apocalypse.
The best way to do this is to either become a zombie or kill yourself in a tragically awesome way, like high fiving somebody else in mid-air using two of the only functioning airplanes on the planet.
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BroloBroseidonLord of the BroceanRegistered Userregular
Once two objects are put in an entangled state, their properties are inextricably entwined.
Although those properties are inherently unknowable until a measurement is made, measuring either one of the objects instantly determines the characteristics of the other, no matter how far apart they are.
Ok, so that makes sense with the red/blue marble example Tossrock used.
So, what good is this then?
I mean if you can't change one after they are separated to send a message or something then all you would know is the information already entered when the particles were entangled, yes? My fucking newspaper does that.
I might not be getting this
It can be used for cryptography, and that's about it for practical uses.
An important and unique property of quantum cryptography is the ability of the two communicating users to detect the presence of any third party trying to gain knowledge of the key. This results from a fundamental part of quantum mechanics: the process of measuring a quantum system in general disturbs the system. A third party trying to eavesdrop on the key must in some way measure it, thus introducing detectable anomalies. By using quantum superpositions or quantum entanglement and transmitting information in quantum states, a communication system can be implemented which detects eavesdropping. If the level of eavesdropping is below a certain threshold a key can be produced which is guaranteed as secure (i.e. the eavesdropper has no information about), otherwise no secure key is possible and communication is aborted.
Once two objects are put in an entangled state, their properties are inextricably entwined.
Although those properties are inherently unknowable until a measurement is made, measuring either one of the objects instantly determines the characteristics of the other, no matter how far apart they are.
Ok, so that makes sense with the red/blue marble example Tossrock used.
So, what good is this then?
I mean if you can't change one after they are separated to send a message or something then all you would know is the information already entered when the particles were entangled, yes? My fucking newspaper does that.
I might not be getting this
It is no good. It is pretty much a useless aspect of the universe.
Once two objects are put in an entangled state, their properties are inextricably entwined.
Although those properties are inherently unknowable until a measurement is made, measuring either one of the objects instantly determines the characteristics of the other, no matter how far apart they are.
Ok, so that makes sense with the red/blue marble example Tossrock used.
So, what good is this then?
I mean if you can't change one after they are separated to send a message or something then all you would know is the information already entered when the particles were entangled, yes? My fucking newspaper does that.
I might not be getting this
It is no good. It is pretty much a useless aspect of the universe.
A lot of quantum theory is like that.
Question:
Do two particles have to be super close to each other in order to entangle them?
My brain says yes but anything is possible with Science.
I kinda want to be around for the Zombie Apocalypse, but at the same time I don't want to have to deal with the aftermath of the Zombie Apocalypse.
The best way to do this is to either become a zombie or kill yourself in a tragically awesome way, like high fiving somebody else in mid-air using two of the only functioning airplanes on the planet.
Ah, so could it be like, comparable to a home security system then? I dunno, can you explain how the cryptography works with that red/blue marble analogy?
Ah, so could it be like, comparable to a home security system then? I dunno, can you explain how the cryptography works with that red/blue marble analogy?
Alright, let us say that each time a quantum entanglement occurs one red ball goes one way and a blue ball goes the other.
Now let us say that two people wish to make a secure cryptographic code. They make one quantum entanglement happen for each letter in the alphabet, and if there is a red ball they will replace the letter with the next letter in the alphabet, and if there is a blue ball they will replace it with the previous letter of the alphabet.
Now when they send the encrypted message, the other dude will just have to follow the same procedure to unencrypt the message, as the sequence of balls he received was the mirror of the one used to encrypt the message.
The point of the system is that the encryption code is known only to the two people that received the balls. It is not possible to eavesdrop on the information, because the only way to do so would be to catch the ball on route.
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You busted in asking dudes if you should bang your cousin
you have no one to blame but yourself
Fiz would rape you in the late stages of the experiment though.
XBox LIVE: Bogestrom | Destiny
PSN: Bogestrom
I think I heard on the SGU podcast that quantum entanglement probably won't be able to be used for instant transmission of information.
steam
The caveat with entanglement is that no information will be teleported. You can send random signals to one another instantly, but they can only be verified at the speed of light.
Quantum entanglement will never be able to teleport information without causing a causality paradox, so there's no way it and the general theory of relativity could be true at the same time. General relativity has been borne out in lots and lots of scientific experimentation, and has a great body of evidence supporting it, so I really don't expect entanglement to ever work as a means of instant communication or teleportation.
Did they say why?
Edit: Rolo nailed it.
This is a good amount of science for the first two pages. I am pleased with the results of this, my fourth thread that I have ever made.
I made a TD for iphone and windows phone!
It means you have to be doing crystal meth to understand it.
it's like the movie speed
That being said, as a good Biology major I have a healthy admiration for my lord and savior Charles Darwin. (or as I refer to him casually "my man, Chuck D.")
I'm actually reading a biography on him right now.
The Economist had an article, and I knew if I didn't do it right now, I would forget.
I made a TD for iphone and windows phone!
Oh but...oh wait now I think I get it. So, wait no I don't
I made a TD for iphone and windows phone!
You have no reason to fear Science, my child.
Until the dawn of the Zombie Apocalypse (Zombocalypse?) of 2391, when science undoes all that is Civilization, anyway.
Basically the idea is that this stuff is Religion.
haven't they seen the fly?
Ok, so that makes sense with the red/blue marble example Tossrock used.
So, what good is this then?
I mean if you can't change one after they are separated to send a message or something then all you would know is the information already entered when the particles were entangled, yes? My fucking newspaper does that.
I might not be getting this
I made a TD for iphone and windows phone!
XBox LIVE: Bogestrom | Destiny
PSN: Bogestrom
I don't blame science for that. It was either that or Voodoo was going to do it anyway.
Solution: Die at the hands of the Zombie horde.
It is no good. It is pretty much a useless aspect of the universe.
A lot of quantum theory is like that.
The best way to do this is to either become a zombie or kill yourself in a tragically awesome way, like high fiving somebody else in mid-air using two of the only functioning airplanes on the planet.
It can be used for cryptography, and that's about it for practical uses.
http://en.wikipedia.org/wiki/Quantum_cryptography
An important and unique property of quantum cryptography is the ability of the two communicating users to detect the presence of any third party trying to gain knowledge of the key. This results from a fundamental part of quantum mechanics: the process of measuring a quantum system in general disturbs the system. A third party trying to eavesdrop on the key must in some way measure it, thus introducing detectable anomalies. By using quantum superpositions or quantum entanglement and transmitting information in quantum states, a communication system can be implemented which detects eavesdropping. If the level of eavesdropping is below a certain threshold a key can be produced which is guaranteed as secure (i.e. the eavesdropper has no information about), otherwise no secure key is possible and communication is aborted.
The hell are they so excited about, then?
I made a TD for iphone and windows phone!
Question:
Do two particles have to be super close to each other in order to entangle them?
My brain says yes but anything is possible with Science.
subtle
I made a TD for iphone and windows phone!
Evidence of the oldest known terrestrial life
http://www.sciencedaily.com/releases/2009/02/090204135731.htm
Early whales gave birth on land.
http://www.sciencedaily.com/releases/2009/02/090204085133.htm
Huge fucking snake.
http://www.sciencedaily.com/releases/2009/02/090204112217.htm
XBox LIVE: Bogestrom | Destiny
PSN: Bogestrom
I made a TD for iphone and windows phone!
even the invertebrates were juicin'!
steam | Dokkan: 868846562
micturate
Alright, let us say that each time a quantum entanglement occurs one red ball goes one way and a blue ball goes the other.
Now let us say that two people wish to make a secure cryptographic code. They make one quantum entanglement happen for each letter in the alphabet, and if there is a red ball they will replace the letter with the next letter in the alphabet, and if there is a blue ball they will replace it with the previous letter of the alphabet.
Now when they send the encrypted message, the other dude will just have to follow the same procedure to unencrypt the message, as the sequence of balls he received was the mirror of the one used to encrypt the message.
The point of the system is that the encryption code is known only to the two people that received the balls. It is not possible to eavesdrop on the information, because the only way to do so would be to catch the ball on route.
The best science related song there is.