Surface Codes Based Quantum Networking

Case ID:

This invention uses surface codes to implement an extendable quantum communication network.

Quantum communication makes use of quantum physics to create highly secure networks that are immune to many techniques used to intercept the communication while in transit. But because quantum information degrades quickly, there are limitations on how far the information can travel. This limitation is addressed by placing intermediate nodes between the source and destination, which act as “repeaters” to break the transmission into several steps of shorter distance. However, existing quantum repeater technology is inefficient and introduces latency into the transmission.

Furthermore, the security of a quantum communication network relies on the assumption that the nodes used to receive and transmit information are themselves secure. If a node were to be compromised, it could undermine the security network. Accordingly, as more repeater nodes are added, the network as a whole becomes less secure.

This invention uses surface codes, a technique used for error correction in quantum technologies, to implement a quantum communication network that leaves the nodes less susceptible to compromise and eliminates the latency typically introduced at repeater nodes.


  • Banking and financial institutions
  • Critical infrastructure
  • Military applications
  • Telecommunication networks


  • Enhanced security
  • Increased communication distance
  • Low latency
Patent Information:
Contact For More Information:
Brett Mortenson
Licensing Manager, College of Engineering
The University of Arizona
Lead Inventor(s):
Ivan Djordjevic