The Dream of Quantum Computing Is Both Dead and Alive

Connecting decision makers to a dynamic network of information, people and ideas, Bloomberg quickly and accurately delivers business and financial information, news and insight around the world Companies are racing to create devices that could revolutionize finance, supercharge medical and climate research — and might also cause major new cybersecurity vulnerabilities. A chandelier that’s used to achieve the extremely cold temperatures necessary for quantum calculations. Photographer: Juuso Westerlund for Bloomberg Businessweek If you’ve seen an image of a quantum computer, chances are it wasn’t working. The most photogenic part is inside, visible only when the machine is switched off. The industry calls it a chandelier: an ornate tower of braided wires and copper plated with gold.

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