| name | quantum-entanglement-capacity-gains |
| description | Quantum entanglement assistance for exponential capacity gains in classical multiple access channels with causal CSIT |
| category | quantum |
Quantum Entanglement Capacity Gains
Methodology
Quantum entanglement assistance provides multiplicative capacity advantages in classical communication networks with causal channel state information at transmitters.
Key Insights
- Exponential scaling: Capacity advantage grows exponentially with number of users K for classical K-user multiple access channels
- Unbounded gains: Advantage is unbounded as state alphabet size grows (with K=3 fixed, binary input/output)
- Substantial practical gains: Factors exceeding 21x (K=5) and 88x (K=7) with binary alphabets
- Robust to noise: Exponential advantage persists even with 30% depolarization per entangled qubit
- Transmitter-only: Gains from entanglement provided only to transmitters
Application Scenarios
- Multi-user communication systems
- Network coding with quantum resources
- Information theory capacity analysis
Activation
Shannon capacity, entanglement assistance, multiple access channel, CSIT, capacity gain, information theory
