Quantum Computing in the Financial Sector, Dec 2025

In this candid 2025 year-end review, the Qubit Value podcast strips away the marketing hype to reveal the stark engineering realities facing quantum computing in the financial sector. The episode explores why, despite the buzz, not a single financial institution has deployed a quantum computer in production, highlighting the massive disparity between the thousands of logical qubits required for useful algorithms and the current hardware limit of roughly 100 to 150 physical qubits. The hosts delve into critical technical bottlenecks, such as the "state preparation" challenge where data loading speeds negate computational advantages, and the "Barren Plateau" problem that hinders quantum machine learning. Ultimately, the conversation pivots from profit seeking to security, urging executives to prioritize post-quantum cryptography immediately to counter "harvest now, decrypt later" threats, while resetting expectations for financial quantum advantage to the year 2040.