麦肯锡：量子之年：从2025年从概念到现实报告（英文版）

Quantum computing A new computing paradigm leveraging the laws of quantum mechanics to provide significant performance improvement for certain applications and enable new territories of computing compared to existing classical computing 1. Quantum cryptography draws on the exchange of a secret key to encrypt messages based on the quantum mechanical phenomenon of entanglement. Unlike classical cryptographic protocol, it is in principle not possible to “eavesdrop” on messages exchanged with qua