What is Willow? Google's quantum computing chip explained in 10 points

Google has announced a significant advancement in quantum computing as it unveiled its next-generation chip called 'Willow'. This new chip, developed at the company’s quantum lab in Santa Barbara, California, was able to solve a complex mathematical problem in just five minutes — a task that would take classical computers longer than the history of the universe.

“Introducing Willow, our new state-of-the-art quantum computing chip with a breakthrough that can reduce errors exponentially as we scale up using more qubits, cracking a 30-year challenge in the field,” Sundar Pichai, Chief Executive Officer of Alphabet and Google, said in a post on X.



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Google’s quantum chip, Willow, has sent ripples through the tech world as it marks a bold step toward the future of technology.

Here are 10 points that you should know about Willow, Google's quantum computing chip:

-In a major breakthrough, Google has launched Willow, its latest quantum chip. Willow has state-of-the-art performance across a number of metrics, enabling two major achievements, according to a Google blog post.

-The first is that Willow can reduce errors exponentially as we scale up using more qubits. This cracks a key challenge in quantum error correction that the field has pursued for almost 30 years.

-Second, Willow performed a standard benchmark computation in under five minutes that would take one of today’s fastest supercomputers 10 septillion (that is, 1025) years — a number that vastly exceeds the age of the Universe.

-Willow operates using superconducting transmon qubits—tiny electrical circuits exhibiting quantum behaviour at extremely low temperatures. These circuits are engineered to function like artificial atoms in a quantum state.

ALSO READ: Google introduces Willow quantum chip, Sundar Pichai says it can solve complex problems in 5 minutes

-To maintain these delicate quantum states, the qubits are cooled to temperatures just above absolute zero. This minimises vibrations and other disturbances that could disrupt the qubits and introduce errors in calculations.

-Google sees Willow as an important step in its journey to build a useful quantum computer with applications in areas such as drug discovery, fusion energy, and battery design

-A quantum chip is a special type of computer chip designed to use the principles of quantum mechanics, the science of very tiny particles like atoms.

-While regular chips use 'bits' (0 or 1) to process information, quantum chips use 'qubits', which can be 0 or 1 or both at the same time. This unique ability allows quantum chips to handle complex calculations much faster than traditional computers.

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-Quantum computing is a field of computer science that uses quantum mechanics to address problems that classical computers cannot solve. Unlike classical computers, which use bits to represent information as 0 or 1, quantum computers rely on quantum bits, or qubits.

-Quantum computers work in a fundamentally different way to the computer in your phone or laptop. They harness quantum mechanics - the strange behaviour of ultra-tiny particles - to crack problems far faster than traditional computers, according to a report in BBC.

FAQs

What is the name of Google's next-generation quantum computing chip?
The name of Google's next-generation quantum computing chip is 'Willow'

What significant achievement did Willow accomplish?
Willow solved a complex mathematical problem in just five minutes, a task that would take classical computers longer than the history of the universe.

What type of qubits does Willow use?
Willow operates using superconducting transmon qubits.