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Un team di ricercatori di Google ha annunciato di aver realizzato un computer quantistico dalle prestazioni straordinarie, tali da superare di gran lunga qualsiasi altro tipo di supercalcolatore attualmente in uso. Sarebbe il primo computer di una nuova generazione, definita dagli esperti "quantum supremacy" (supremazia quantistica).
Sycamore, questo il nome della macchina, "può effettuare in pochi secondi la stessa quantità di calcoli che gli attuali supercomputer impiegano migliaia di anni ad elaborare". Lo ha spiegato Sundar Pichai, CEO del colosso di Mountain View. Un team rivale, l'azienda IBM, ha però avanzato dei dubbi sull'effettiva potenza di calcolo di Sycamore.
I computer tradizionali "spezzettano" i dati in bit, il cui valore può essere 1 oppure 0. Nei computer quantiistici, invece, i cosiddetti qubits possono assumere entrambi i valori contemporaneamente.
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