Google has built the world’s most advanced quantum chip
The record-setting device could beat conventional supercomputers at solving some problems.
The news: Google announced its new Bristlecone quantum chip. It contains 72 quantum bits, or qubits, which are used to perform calculations. Until now, the most advanced quantum chip, built by IBM, had 50 qubits.
Why it matters: Some researchers—including those at Google—say that quantum devices with over 50 qubits may outperform regular supercomputers at some (specific) tasks. That’s what’s known as “quantum supremacy.”
But: More recently, some research has suggested that supremacy may require rather more than 50 qubits. And if it’s to beat regular hardware, Google will have to ensure that its chip is stable and relatively error-free.
Deep Dive
Computing
How ASML took over the chipmaking chessboard
MIT Technology Review sat down with outgoing CTO Martin van den Brink to talk about the company’s rise to dominance and the life and death of Moore’s Law.
How Wi-Fi sensing became usable tech
After a decade of obscurity, the technology is being used to track people’s movements.
Why it’s so hard for China’s chip industry to become self-sufficient
Chip companies from the US and China are developing new materials to reduce reliance on a Japanese monopoly. It won’t be easy.
Stay connected
Get the latest updates from
MIT Technology Review
Discover special offers, top stories, upcoming events, and more.