Xairos Newsletter: October 4, 2021

By David Mitlyng CEO

Theme of the Week

Tragedy of the Commons
We recently got a question: Why pay for timing when the GPS signal is free?
The snarky response: Why pay for cable when broadcast TV is free? Why pay for cell service when CB radio is free?
But the better response: because timing from GPS is not nearly secure or accurate enough for modern networks, and there is no incentive to improve this for civilian use.
Because of this a multi-billion-dollar cottage industry has been created for timing products that provide incremental improvement but still rely on the timing signal from GPS.
Telcos and data centers also spend billions to extend holdover when there is a GPS outage – and there are many many outages per year.
Xairos’ timing service does not need holdover (indeed, GPS timing is the backup), delivers orders of magnitude better accuracy, is resilient to outages, will be continuously improved and supported, and cost the same as existing timing hardware solutions.

Last Week’s Theme: It’s All About Time: Satellite Based Quantum Time Synchronization


Industry News

  • Quantum networks are in development throughout the world. China just published a report on the “field operation of a quantum metropolitan area network with 46 nodes.” This is in addition to “a three-user network by DARPA, a six-node network in Europe, the SwissQuantum network as well as a mesh-type six-node network in Tokyo.”
  • But the US also has projects. The Department of Energy (DOE) just announced the “Quantum-Accelerated Internet Testbed project, or QuAInT, a multidisciplinary team of computer scientists, engineers and physicists… ….to design and deploy a quantum internet testbed capable of sending and receiving information on an intracity scale” using the Quantum Internet Blueprint Workshop.
  • Japan is also building out a quantum network, as described in a National Institute of Communications Technology (NICT) “Special Issue on Quantum Technologies.

The More You Know…

These news articles highlight the advancements in quantum networks around the world, which represent an interesting use case for our technology.
At it’s simplest definition, a quantum network is used to facilitate the transmission of qubits.
Most of the current quantum networks are focused on using existing fiber optic networks for the secure transmission of encryption keys known as quantum key distribution (QKD).
But the more advanced efforts, including the thrust of development within the United States, is to network quantum computers creating “a quantum computing cluster… …that creates more computing potential.”
These networks need very precise time synchronization. And because they are already being built with entangled photon hardware and distribution systems, they are ready made for our technology.

To learn more, please email us or schedule a meeting here.