Quantum Access Network Qkd

---
name: quantum-access-network-qkd
description: "Passive quantum access network architecture using single thermal source for ultra-large-capacity QKD. Addresses OTP encryption rate demands in PON-based quantum access networks, achieving record capacity with passive network design. Use when designing QKD access networks, scaling quantum key distribution to multi-user networks, or evaluating passive thermal-source quantum communication."
metadata:
  arxiv_id: "2605.20077"
  published: "2026-05-19"
  authors: ""
  tags: [quantum, qkd, access-network, pon, thermal-source, key-distribution, capacity]
---

## Quantum Access Network with Thermal Source QKD

### Core Concept
Quantum Key Distribution (QKD) provides physically-secure keys via one-time-pad encryption. Current PON-based QKD access networks fall short of classical 10-Gbps capacity demands. A passive thermal-source-driven architecture achieves record capacity with single thermal source powering the network.

### Key Methodology
1. **Thermal Source QKD**: Single thermal source drives passive QKD access network architecture
2. **Capacity Scaling**: Achieve OTP encryption rates comparable to 10-Gbps classical access networks
3. **Passive Network Design**: Eliminate active components for simplified, scalable quantum access
4. **Multi-User Support**: Scale to hundreds of users with passive quantum network architecture

### Implementation Patterns
- Design passive QKD access networks using thermal sources
- Scale quantum key distribution to PON-based multi-user architectures
- Optimize OTP encryption rates for practical deployment
- Integrate QKD with existing classical access network infrastructure

### Applications
- Ultra-large-capacity QKD access networks
- Multi-user quantum key distribution systems
- Passive quantum communication infrastructure
- Quantum-secure broadband access networks

### Activation
quantum, qkd, access-network, pon, thermal-source, key-distribution, capacity, passive, otp-encryption, broadband