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Physics

Quantum computers that use 'cat qubits' may make fewer errors

Quantum bits inspired by Schr枚dinger鈥檚 cat could allow quantum computers to make fewer mistakes and more efficiently crack algorithms used for encryption

By Karmela Padavic-Callaghan

5 March 2023

A tightly arranged collection of copper and silver-colored metallic tubes and cylinders comprise the inside of a quantum computer

A view of the inner components of a quantum computer

Ben Fourmi

Special quantum bits called 鈥渃at qubits鈥 could make it possible for quantum computers to make fewer errors and more efficiently break common encryption algorithms.

Conventional computers process information by manipulating bits, which take on values of 0 or 1, based on whether a transistor is 鈥渙n鈥 or 鈥渙ff鈥. For quantum computers, however, a standardised counterpart for the transistor has not yet been settled upon. Quantum bits, or qubits, can be made from charged atoms, particles of light that have quantum properties and more.

One important characteristic of…

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