Explainer
What Is Quantum Advantage?
Google claimed quantum advantage in 2019, and within a few years classical computers had closed most of the gap. IBM claimed a version of it in 2023, and ordinary computers…
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Quantum Computing
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Explainer
What Is Quantum Entanglement?
Erwin Schrodinger coined the word in 1935 to name the one thing quantum mechanics did that classical physics could not. Ninety years later, entanglement is no longer a paradox to…
Explainer
How Quantum Error Correction Works
You cannot copy a qubit to protect it, and you cannot look at it to check on it, since both acts destroy the information you are trying to save. Quantum…
Research
Universal Quantum Gates from Anyons: How S3 Topological Computing Works
A quantum processor has run a universal gate set built entirely out of moving exotic quasiparticles around one another and fusing them together. Fifty-four qubits, one phase of matter, three…
Analysis
The Latest in Quantum Computing: The Advances Reshaping the Field
Error correction crossed the threshold, a quantum advantage became verifiable, and the cost of breaking RSA fell — on maths, not hardware. What actually changed, and what each result promises.
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