The Skills Quantum Communications Work Requires
QKD deployment work sits across photonics, network protocol engineering, cryptography, and operations. Here is what each domain asks of an engineer, and where classical…
Why Countries Disagree About QKD
The NSA will not certify QKD for national security use. China runs a 4,600 km quantum network. Both are current positions. Here is the…
Quantum Key Distribution, Read as a Security Control
Three national agencies advise against QKD for their own networks. Twenty-seven EU states are funding one. Both positions hold, and the reason explains how…
Quantum Repeaters: What an Architect Needs to Know Before the Sales Call
A quantum repeater is not an amplifier. It is a machine that manufactures entanglement in segments and stitches them together. Here is how it…
Entanglement-as-a-Service: What Is Actually Being Sold
Entanglement can be delivered on demand, but it cannot be copied, amplified, or stored for long. Here is what an EaaS offer contains and…
Quantum Networks in Orbit: Who Controls Which Layer
Satellite QKD turns a physics result into infrastructure. For architects, the useful question isn't who owns the satellite. It's which layer of the stack…
Quantum Memory and Why Networks Need It
Quantum networks fail past a few hundred kilometres without a component that has no classical equivalent: a device that holds a qubit without reading…
What a Quantum Network Is Actually For
A quantum network does not carry your traffic. It produces a narrow set of outputs, and knowing exactly what those are is the difference…
Where Trust Sits in a Quantum Network
Quantum key distribution moves the trust boundary rather than removing it. A working guide to trusted nodes, device-level attacks, and the questions to ask…
Distributing Entanglement Across a Network: A Design-Level Guide
Loss, fidelity, and memory coherence set the shape of every quantum network. A working guide to direct transmission, entanglement swapping, and purification, with the…