Big Picture Science – Time Travel Agents: Seth Lloyd / Teleportation

by Gary Niederhoff on October 16, 2016


Big Picture Science / Teleportation
click to listen (trt 11:09)

Part 1 of Time Travel Agents, featuring Seth Lloyd, professor of quantum mechanical engineering, M.I.T., discussing recent experiments in teleporting photons, including one in which they attempted to send a photon back in time to destroy its former self.

{ 1 comment… read it below or add one }

avatar Richard October 20, 2016 at 3:12 am

Pretty disappointed with Seth Lloyd’s, so called, “teleportation”. According to him, photon at point A is “destroyed” and “teleported” to point B, 6 Km away. But “Alice” at point A, “tells” “Bob” over the phone, “destroys” her photon, and, hey presto, an identical photon appears to Bob at point B, at time 6/C seconds later.
The question is how does he know that the photon has not been “destroyed” and “reconstituted”, but simply transported over the fibre cable to point B? It would take the same time to reach point B travelling at the speed of light.
I thought “spooky action at a distance” was supposed to be instantaneous. And if it is “instantaneous” how in this “instantaneousness” measured?

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