Tech that just got out.Explained so a 12-year-old gets it, checked against the original paper, then turned into business ideas you can test this week.
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Data/Quantum computing/China · Singapore
A review prices quantum error cleanup at 537 million times more runs for 1,000 noisy places in a circuit. No machine was run to get that figure, and it is not a count of qubits.
Research Radar/Quantum computing/USA
A review of neutral atom quantum computing reports arrays of 12,001 trap sites and one atom holding its bit for 119 seconds. It is a survey of other labs, not a new experiment.
Research Radar/Quantum computing/Singapore · China
A review of quantum error mitigation prices the cleanup. At a half percent error rate, fixing 100 spots costs 7.46 times more runs and fixing 1,000 spots costs about 537 million times more.
Qubits are too fragile to compute with on their own, and you cannot copy or even look at one. Here is the trick that fixes errors without reading the data.
A quantum computer does not try every answer at once. It steers waves so wrong answers cancel and the right one grows. Here is how that works and what it is for.
A large quantum computer would break the encryption that guards banking and the web. Here is what replaces it, why the change started early, and what to check first.
A qubit is the basic unit of a quantum computer, and it is stranger than a coin you have not looked at. Here is what superposition, phase and entanglement really mean.
Research Radar/Quantum computing/USA · United Kingdom
Quantinuum ran a complete error-correction design on its Helios machine, not just a memory test. The protected version made fewer mistakes than the bare hardware in every test, and no bad runs were thrown away.