A s quantum computing is attracting unprecedented investment, with $3 billion flowing into the sector in just the first half of September through major venture deals and public markets, critical infrastructure challenges remain and threaten to undermine the technology's ambitious scaling goals.

Google's Willow quantum chip stuns scientists with 13,000× speed boost over top supercomputers in physics simulation.

An exhibit of a quantum computer at O’Hare put on by the University of Chicago and IBM aims to make learning about the technology accessible amid Chicago’s rise as a quantum hub.

While quantum phenomena can be demonstrated using experiments such as the Double-Slit Experiment, certifying that a multi-qubit system is truly tapping into quantum mechanics is a challenge. It also becomes exponentially more difficult as the number of qubits in a quantum system increases.

The Willow processor runs the first verifiable algorithm with real-world applications, marking a shift from theory to practical quantum computing.

IBM said on Friday it is able to run a key quantum computing error correction algorithm on commonly available chips from Advanced Micro Devices , in a step toward commercializing super-powerful computers.

The US is taking equity stakes in quantum-computing firms, signaling a bold new era of state-backed innovation in a trillion-dollar frontier technology.

The quantum computer developer’s stock dropped more than 8% on the news today. IonQ floated its shares on the NYSE in 2021 through a merger with a special purpose acquisition company, or SPAC. It lost $177.5 million on $20.7 million in revenue last quarter.

Quantum computing may not be in Buffett's wheelhouse. But he owns a stake in a quantum computing stock anyway.