Entangled photons transmitted across existing 158-mile loop of fiber-optic cables beneath NYC unaffected by temperature/ vibration

https://phys.org/news/2026-04-scientists-quantum-internet-york-city.html

"quantum memory node/ compensation hardware maintains quantum state despite patchwork of different cable ages/ qualities... quantum repeaters work at scale sending data to cloud quantum computer where processed without quantum computer's owner seeing data/calculation... distributed quantum sensing connecting quantum clocks/ sensors creating virtual telescope or gravity sensor with 1,000s times higher resolution... future: integrate portable quantum memories into racks alongside routers in each building"