Ghostly Quantum Communication

Quote:

Quantum Engineering Breakthroughs Could Offer New Direction For Communication Tech Entangled photons and phonons defy intuition. When these particles become quantum-mechanically “entangled,” the association can survive even though the particles themselves are separated over large distances. That is, a change in one particle elicits a change in the other. Quantum communication takes advantage of this phenomena by encoding information in the particles. Cleland wanted to find a method to send quantum information without losing it in the transmission. He and his team, including PME graduate student Hung-Shen Chang, developed a system that entangled two communication nodes using microwave photons—the same photons used in cell phones. For this experiment, they used a microwave cable about a meter in length to establish the coupling between the qubits. By turning the system on and off in a controlled manner, they were able to quantum-entangle the two nodes and send information between them without ever having to send photons through the cable. “We transferred information over a one-meter cable without sending any photons to do this, a pretty spooky and unusual achievement,” Cleland said. “In principle, this would also work over a much longer distance. It would be much faster and more efficient than systems that send photons through fiber-optic channels.”

They sent information without using photons to disentangle?
And they sent it much faster than, say, two thirds the speed of light?

I don't think I understand this.

via International Skeptics Forum https://ift.tt/3e91rq7