QuEra-MIT- Harvard-DARPA 256-qubit quantum processor takes on IBM's 127-qubit quantum processor

https://www.fastcompany.com/90698019/quera-quantum-computing-startup

"traps arrays of neutral atoms in a small vacuum chamber, then uses lasers to slow them down to virtual motionlessness, cooling them down to one millionth of a degree Kelvin above absolute zero. QuEra says this is a thousand times colder than the qubits in refrigerated quantum machines made by IBM and Google... The processor then uses flashes of laser light to arrange the qubits in the right positions to model complex problems"

See also: IBM announces development of 127-qubit quantum processor

"two main camps—those attempting to create a quantum computer using entangled photons and those using superconducting materials. The processors announced by IBM are all based on superconducting materials... has plans for launching two other, presumably more powerful processors it has named Osprey and Condor over the next two years. The current processor has been named Eagle"

Related:

Quantum Processor Completes 9,000 Years of Work in 36 Microseconds

Underdog technologies gain ground in quantum-computing race

Google develops a quantum computer that can instantly make calculations that would take the best rival supercomputers 47 years
https://www.dailymail.co.uk/sciencetech/article-12258353/Google-claims-quantum-computer-breaththrough.html

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