Quantum entangled-photon Chinese satellite.

Georgi Guninski guninski at guninski.com
Thu Aug 4 23:20:48 PDT 2016


On Thu, Aug 04, 2016 at 02:22:05AM +0000, jim bell wrote:
> http://www.dailymail.co.uk/sciencetech/article-3720772/China-launch-unbreakable-quantum-spy-satellite-say-one-day-lead-megascope-size-Earth-spot-license-plate-Jupiter-s-moons.html

Bugs me with what energy the particles communicate.
AFAICT every communication needs some energy.
Two small photons far away communicate.
Where the energy comes from? Even just to keep them in a relation so
they can communicate?

Will they communicate if they are on the opposite sides of Earth (or
Sun)?

In this question I don't care about the speed.



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