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ed777
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is it possible to entangle two particles and then separate them buy a large distance, and then interfere with one of the particles and observe this in the other, like a quantum communication system that is faster than light?
Suppose you have two stone-throwers sitting back-to-back throwing stones at two oppositely positioned targets. Let's call the targets A and B. Now let's assume that the stone-throwers both repeatedly throw stones simultanuously at the targets, and let's suppose they have a chance of exactly 50 percent to hit the target, and 50 percent to miss it. Suppose behind each target stands an observer, checking for each stone if it hits or misses. Let's call them Alice and Bob.ed777 said:is it possible to entangle two particles and then separate them buy a large distance, and then interfere with one of the particles and observe this in the other, like a quantum communication system that is faster than light?
what about spooky action at a distance?Vanadium 50 said:No, it is not.
We could have another long thread about whether spooky action at a distance even exists - we already have several of these - but even if it does it cannot be used for communication.ed777 said:what about spooky action at a distance?
Quantum communication is a method of transmitting information using the principles of quantum mechanics. It involves the manipulation and transmission of quantum states, such as entangled particles, to securely send information between two parties.
Entanglement is a phenomenon in quantum mechanics where two or more particles become intrinsically linked, so that the state of one particle affects the state of the other(s) regardless of distance. This allows for the secure transmission of information as any interference or measurement of the particles will be immediately apparent to the parties involved.
Interference is a key component of quantum communication as it allows for the manipulation and measurement of entangled particles. By interfering with one of the entangled particles, the state of the other particle(s) can be determined, allowing for the transmission of information between the parties.
No, quantum communication does not allow for FTL communication. While the effects of entanglement may appear to be instantaneous, no information is actually transmitted faster than the speed of light. Additionally, the transmission of information through quantum communication is limited by the speed of the physical medium being used, such as fiber optic cables.
Quantum communication has the potential to revolutionize fields such as cryptography and secure communication, as well as improve the speed and efficiency of information processing. It may also have applications in quantum computing and quantum teleportation.