Wuwei
Gold Member
- Apr 18, 2015
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Your response is a Gish Gallop of non-sequitur. If you don't want to stick with the laws of physics then yes, you can dream of wondrous universes with new laws of physics that can do anything you want. Everyone will have ESP and can be beamed to Alpha Centauri on weekends. To me those sorts of dreams are cheap. The manifestations of the dreams are where the glory is.The only confusion is yours as communication is the transfer of information, this is true no matter what the medium used for the transfer such as amplitude or frequency modulation radio waves, microwaves, infrared, visible light, fiber optic, sound frequency's or digital info carried via any of these mediums. When computers consisted of mountains of vacuum tubes they were inefficient and cumbersome, yet with the conglomeration of minds that saw the potential if the tubes could be shrunk, the modern microchip was born. You lack the required vision to move ahead as you persist in using the words can't be measured and you believe in arbitrary speed limits set by a man incapable of combing his own hair and who never in his entire life did a single experiment which is why Hubble destroyed Einsteins ignorant hypothesis that the universe was not expanding. Hubble experimented with and came to a different conclusion the newest measurements have entire galaxies moving at 5 times light speed something that you again say can't be happening.So why exactly is it that so many are denying these breakthroughs and flat out claiming that no information can and is being sent using entangled particles?
There may be a confusion between transferring information versus communication. No information exists in simple entangled particles since both are in an indeterminate state (a superposition of two possible states.) Measuring the state of one particle immediately fixes the state of the other particle. In that sense particle state information transfer is instantaneous.
Suppose you want to communicate instantly to Bob going to Alpha Centauri. You start out by entangling a particle pair. Then send one particle to Alpha Centauri with Bob. You want Bob to instantly tell you if he has enough fuel to get back. Particle spin +1 means “yes” spin -1 means “no”.
In order to communicate a specific state, +1 or -1 Bob has to force his particle's entangled state to the one that is consistent with the message he wants to send. The act of forcing the particle's state causes decoherence – Bob's particle state is what he wants, but your particle state is still a superposition of the two states – no information is communicated.
Summary:
Simply measuring one particle's state changes the other particle's state – both states are opposite (because of entanglement) but a random message is instantaneously sent.
Bob's can force his particle's state, but entanglement is aborted and leaves your state indeterminate.
The teleportation of a qubit is not new, but doing it on a single chip is a great technological achievement. Thank you.
The long answer:
The Real Reasons Quantum Entanglement Doesn't Allow Faster-Than-Light Communication
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Well there is no can't be with the universe, because there is no definition of what the universe is, where it came from or where it is going, all we have are observations that do not match with any set of physical values whatever. The same is true of quantum entanglement which is currently in a similar state as what tubes were in the 40's and 50's. Do you think you could get a job saying that it can't be done?
You stay there canting your life away, I'm still moving ahead and not slowing for squat
Your OP gives a small step in the manifestation of computers that will leap frog Moore's Law. That's great. I am talking about what we can do right now with entanglement, not some dream of what we may do with unknown new laws of physics. You seem to turn every science topic to your dream land and not to where we are going right now. Right now FTL communication is not possible with what we have. Period.
Your ideas would be better respected if you would understand the dividing line between dreams and current realities, and not launch caustic attacks on people concerned with the manifestations of future technology.
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