Engineers send quantum signals with standard Internet Protocol

13 layer8 5 8/28/2025, 7:29:32 PM phys.org ↗

Comments (5)

sam0x17 · 2h ago

I'm a bit confused. What are they sending over the wire exactly? I thought the whole point of quantum communication is you use entanglement to instantly send from point A to point B, and there is no wire?

layer8 · 2h ago

Entanglement doesn’t allow instant communication, you can’t beat the speed of light, and you still need a communication channel. Instead, entanglement is used to prevent undetected eavesdropping on the communication: https://en.wikipedia.org/wiki/Quantum_network#Secure_communi...

Martin_Silenus · 1h ago

Halas, entanglement cannot be used for "instantaneous communications whatever the distance". This is a common misconception.

Hizonner · 3h ago

Probably used freaking IPv4.

YmRgtKH7cT9hxUj · 3h ago

I assume they wanted messages to get there in under 50 years.