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Caltech Engineers Advance Quantum Internet with Entanglement Breakthrough

12/22/2025

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Summary

Story summary

The California Institute of Technology engineers linked two quantum processors to advance a quantum internet, achieving entanglement multiplexing.
The nodes use rare earth ions in nanophotonic cavities to preserve quantum information.
This method enables creation of complex states such as the three-ion W state and supports future networks using repeaters and light-based channels.
The findings appear in Nature.

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Story summary

The California Institute of Technology engineers linked two quantum processors to advance a quantum internet, achieving entanglement multiplexing.
The nodes use rare earth ions in nanophotonic cavities to preserve quantum information.
This method enables creation of complex states such as the three-ion W state and supports future networks using repeaters and light-based channels.
The findings appear in Nature.