PostQuantum - Quantum Computing, Quantum Security, PQC

IBM's QEC team packages 11 logical qubits into a single high-dimensional qudit and wraps the gross code in quantum Reed-Solomon algebra. The result: a fault-tolerant memory that reaches the teraquop regime the gross code couldn't previously access ...

Macron added €1 billion to France's quantum strategy the day after the US committed $2 billion to quantum fabs. France's total quantum commitment now stands at €3.3 billion, and NVIDIA's investment in Alice & Bob landed the same afternoon ...

Washington's $2 billion CHIPS Act quantum package isn't a research program. It's industrial policy — the U.S. is building quantum fabs, and that changes the calculus for everyone tracking the CRQC timeline ...

Eight G7 central banks have published their first joint quantum report, expanding the conversation beyond PQC migration to address quantum computing applications, sensing risks, and system-level dependencies across the financial sector ...

Pan Jian-Wei's team published a rigorous Nature paper showing an order-of-magnitude leap in photonic quantum scale. The engineering is impressive. The "quantum supremacy" framing from state media is a different matter entirely ...

NIST just narrowed 14 post-quantum signature candidates to nine. The survivors span four distinct mathematical families, from isogeny-based compact signatures to multivariate schemes under active cryptanalytic fire. Here's what each candidate is, why NIST kept it, and what this means for your PQC migration planning ...

India's finalized quantum-safe roadmap adds Preferential Market Access mandates, a detailed four-level certification framework, and sector-specific technology guidance. The timelines hold — but the execution gap just got harder to ignore ...

A Caltech–UCSD team has constructed a 3D quantum system that can store a qubit for exponential time without active error correction. The result settles a question that has resisted the field's best efforts for a quarter century ...

A Seoul National University paper arguing lattice-based cryptography has "fundamental limitations" is generating alarming headlines. The theoretical points are valid but well-known. What the paper actually demonstrates is why PQC migration should accelerate, not stall ...

CAS Cold Atom Technology's Hanyuan-2 uses two rubidium isotope arrays and calls itself the world's first dual-core quantum computer. The framing is clever. The missing performance data tells a different story ...

Cisco’s research prototype can route quantum information across encoding modalities at room temperature on standard telecom fiber ...

IonQ's CEO told investors the company will reach the logical qubit count to "challenge RSA-2048" by 2028–2029. That's not the same as breaking encryption, and the Q-FUD machine is already running at full speed ...