FTL communication by Quantum Entanglement

In summary, the conversation involves a person's experiment involving quantum entanglement and FTL communication. The person suggests using entangled particles to transmit information instantly, but others have pointed out that this idea has been discussed extensively on a forum and it is not feasible due to the laws of physics.
  • #1
dawningparadox
17
0
I recently stumbled across quantum entanglement and thought of an experiment. I know that the laws of physics forbid FTL communication, can anyone tell me what's wrong in my following experiment?

Information, in classical bits, consists of two states, 1 and 0. To my shallow knowledge, when an unobserved quanta is used in the double slit experiment, it produces a wave interference pattern due to its wave-particle duality. In contrast, if an observed quanta which its wave function has collapsed is used in the experiment, it produces a 1 slit pattern.

If we produce a pair of entangled particle and we are to send 1's and 0's through space, we can observe a particle on one end and collapse both of the particle's wave function. Then on the other end we conduct a double slit experiment. The experiment would produce a 1 slit pattern and the other end will know that we interfered the particle (vice versa for wave interference pattern). Thus, information is transmitted instantly. We can create a certain time frame, and in the time frame the other end will conduct double slit experiements at a constant rate. Then we can constantly observe/not observe the particles on our end to transmit 1/0 (or vice versa).
 
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  • #2
This question has been asked (too) many times on PF. Please read the threads that appear below under "Similar Discussions."

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FAQ: FTL communication by Quantum Entanglement

What is FTL communication by Quantum Entanglement?

FTL (Faster-Than-Light) communication by Quantum Entanglement is a theoretical concept in which two particles that are in a state of entanglement can instantaneously affect each other, regardless of the distance between them. This phenomenon is based on the principles of quantum mechanics and has been proposed as a potential method for achieving faster communication than the speed of light.

How does FTL communication by Quantum Entanglement work?

FTL communication by Quantum Entanglement relies on the concept of entangled particles, which are two particles that are connected in such a way that any change to one particle will affect the other, no matter how far apart they are. By manipulating the state of one of the particles, information can be encoded and transmitted to the other particle, resulting in instantaneous communication.

Is FTL communication by Quantum Entanglement possible?

Currently, FTL communication by Quantum Entanglement is only a theoretical concept and has not been proven to be possible. While there have been experiments that demonstrate entanglement and the ability to manipulate the state of entangled particles, there are still many technological and practical challenges that need to be addressed before FTL communication by Quantum Entanglement can be achieved.

What are the potential applications of FTL communication by Quantum Entanglement?

If FTL communication by Quantum Entanglement were to be possible, it could have significant implications for communication and information transfer. It could potentially lead to faster and more secure communication, as well as advancements in fields such as computing and cryptography. However, more research and development is needed before these applications can be realized.

Are there any drawbacks to FTL communication by Quantum Entanglement?

One of the main drawbacks of FTL communication by Quantum Entanglement is that it goes against the principles of special relativity, which states that nothing can travel faster than the speed of light. Additionally, the technology and infrastructure required to achieve FTL communication by Quantum Entanglement would be highly complex and expensive. There are also ethical concerns surrounding the potential misuse of this technology for espionage or other nefarious purposes.

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