In some sense, this is a climb-down. It follows because entanglement
is not necessary! It requires nothing fancy to do better than 1 bit@liight-speed!
If you capture an image in a telescope, you get lots of bit at once! If you
focus at a spot and take the image MANY TIMES, THE SPEED OF INFORMATION CAN
EXCEED LIGHT SPEED. If image is of bits, not any image, you are communicating faster
than light. That
is what is happening in entanglement write-up – entanglement makes it
harder to see, and indeed the method is a different way to communicate. But not
faster in any way.
Assuming entangle information takes zero time, imagine
groups A and B distant by 4 light years. You can get the state of sending
particles at once but not even fraction of a bit before 4 years. The pattern
makes only sense after applying that image.
Once started, pipelining is possible.
So is earlier methods good for anything? Automatic
delay-proof encryption!
Does it mean that faster communication is dead? My work
so far. I have no idea of how to do it, if at all, without sacrifice of entanglement
proportional to the length of message
but doing so attacks a theorem that it can’t be done. That is certainly Nobel Prize
work i.e. highly unlikely to work except at high probability, which gets around the
no-go theorem.
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