quantum-entanglement-capacity-gains

# 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 1. **Exponential scaling**: Capacity advantage grows exponentially with number of users K for classical K-user multiple access channels 2. **Unbounded gains**: Advantage is unbounded as state alphabet size grows (with K=3 fixed, binary input/output) 3. **Substantial practical gains**: Factors exceeding 21x (K=5) and 88x (K=7) with binary alphabets 4. **Robust to noise**: Exponential advantage persists even with 30% depolarization per entangled qubit 5. **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