Attempting data transfer through quantum channels past their limit does not merely degrade signal quality, it guarantees exponential failure. Unlike previous work demonstrating error reduction below optimal rates, this establishes definitive boundaries; exceeding channel capacity results in both entanglement fidelity and successful communication decaying exponentially with each use. These findings complete the picture regarding reliable quantum and classical communication limits over noisy connections.
Researchers Bound Data Transfer by Quantum Channel Limits
Attempting data transfer through quantum channels past their limit does not merely degrade signal quality, it guarantees exponential failure. Unlike previous work demonstrating error reduction below optimal rates, this establishes definitive boundaries; exceeding channel capacity results in both entanglement fidelity and successful communication decaying exponentially with each use. These findings complete the picture regarding reliable quantum and classical communication limits over noisy co...