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Are Cat Qubits the Key to Reliable Quantum Computing in the Modern Era?


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A quantum computer.

Cat qubits are at the forefront of efforts to create fault-tolerant quantum computers.

Credit: Bartlomiej Wroblewski

Quantum bits are extremely sensitive to environmental noise, introducing high error rates in quantum computing.

•    The overhead cost of quantum error correction is significant due to redundancies.
•    Cat qubits could help eliminate half the error correction computations with fewer qubits.

Quantum computing, often heralded as the next frontier in computing technology, holds great promise for revolutionizing industries, solving complex problems, and reshaping the way we understand computing.

However, building quantum computers poses significant challenges, including high quantum error rates and problems with decoherence, stability, and scalability of qubits. Additionally, achieving high-fidelity quantum gates and advancing both hardware and software components complicate the path to unlocking the full potential of quantum computing.

Researchers and companies are working towards fixing these problems, and one company at the forefront of this is Alice & Bob, a French start-up. Their focus is on dealing with error correction by using self-correcting superconducting quantum bit: the cat qubit.

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