PostQuantum - Quantum Computing, Quantum Security, PQC

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 ...

Two days after pseudoscience was pitched from Bitcoin's biggest stage to deny the quantum threat, Project Eleven published 110 pages of rigorous analysis showing exactly why that denial is dangerous ...

QuantWare's $178M Series B is the largest private round ever raised by a dedicated quantum processor company. With Intel Capital and IQT on board, the bet is clear: the quantum industry's future is modular, open, and manufactured at scale ...

Q-CTRL's 120-qubit simulation of the Fermi-Hubbard model achieves quantitative accuracy matching classical benchmarks while completing in minutes rather than days. The "practical quantum advantage" claim deserves scrutiny, but the underlying technical achievement is real ...

Using two IBM Heron processors, the Fugaku supercomputer, and a refined embedding workflow, researchers modeled protein-ligand complexes in solution at a scale 40 times larger than their previous result — four months earlier ...

IBM says quantum advantage arrives in 2026. A new Heron-Fugaku experiment provides the evidence. Whether it proves the claim depends on how you define “advantage.” ...

The inventor of BosonSampling and new NAS member says reputable QC hardware experts now tell him a cryptanalytic quantum computer should be possible by around 2029 ...