Do we already have quantum-resistant encryption?

Post-quantum cryptography (PQC) refers to cryptographic systems designed to resist attacks from quantum computers.

I finally had the question: Whose idea was it in the first place?

Recent advancements in quantum computing have converged on error correction as the critical path to practical, fault-tolerant systems.

Quantum computing leverages three foundational principles—error suppression, superposition, and entanglement—to achieve computational advantages unattainable by classical systems.

Due to superposition and entanglement, a quantum computer can, for certain problems, explore a vast number of possibilities in parallel, potentially solving some problems much faster than classical computers.

By focusing on better error suppression at the physical level, rather than just adding more qubits, Amazon is attempting to make the path to practical quantum computing more efficient and achievable in the near term.