Can Signals Be Transmitted Faster Than Light Using Quantum Entanglement?

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The discussion revolves around a proposed method for transmitting signals faster than light using quantum entanglement and double-slit experiments. The setup involves two entangled photons passing through double slits, where the placement of a measurement device affects the interference pattern observed on screens positioned at a distance. Participants debate whether an interference pattern can emerge from the total photon distribution or only from specific subsets, referencing the delayed choice quantum eraser experiment for comparison. The conversation highlights the complexities of quantum behavior, questioning whether photons behave as waves or particles in this context. Ultimately, the feasibility of faster-than-light communication remains contentious, with implications for understanding quantum mechanics.
  • #31
I wanted to know more about the spin-1/2 photons. I was getting entangled.

Carl
 
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  • #32
I posted this in a similar thread - but what about...

I just can't get past this...

if we use entangled pairs (and a continuous stream of them - orginating from the midpoint between the 2 communicators), all we need to do is have Alice wipe out (with a black absorber - shutter apparatus) a pair.

Bob then see's these 'holes' in the regular stream - which can then be translated to binary - hence comunication.

Please tell my why spin's etc even need to played around with - if an entangled pair is really the SAME particle/photon - then it's enough to wipe one out to communicate...

:)

Tell me I'm a Genius - or show me the error of my way?
 
  • #33
lov said:
if we use entangled pairs (and a continuous stream of them - orginating from the midpoint between the 2 communicators), all we need to do is have Alice wipe out (with a black absorber - shutter apparatus) a pair.
What do you mean "wipe out"? Are you suggesting that if one member of an entangled pair is absorbed by an atom, the other will just disappear? That's not how entanglement works.
lov said:
Please tell my why spin's etc even need to played around with - if an entangled pair is really the SAME particle/photon - then it's enough to wipe one out to communicate...
Who told you that an entangled pair is "really the same photon"?
 
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