FTL communication by Quantum Entanglement

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SUMMARY

This discussion centers on the concept of using quantum entanglement for faster-than-light (FTL) communication. The user proposes an experiment involving entangled particles, suggesting that by observing one particle, the wave function of both particles collapses, allowing for instantaneous information transfer. However, the consensus is that the laws of physics, particularly the no-communication theorem, prohibit such FTL communication, as the outcome of the measurement cannot be controlled to convey information. The discussion highlights the fundamental limitations imposed by quantum mechanics on information transmission.

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  • Understanding of quantum mechanics principles, particularly wave-particle duality
  • Familiarity with quantum entanglement and its implications
  • Knowledge of the double slit experiment and its significance in quantum theory
  • Awareness of the no-communication theorem in quantum physics
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  • Research the implications of quantum entanglement on information theory
  • Study the no-communication theorem and its proofs in quantum mechanics
  • Explore advanced quantum mechanics topics, such as Bell's theorem
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Physicists, quantum mechanics enthusiasts, and anyone interested in the theoretical limits of communication and information transfer in the context of quantum physics.

dawningparadox
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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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