When it comes to superconducting quantum processors, the go-to qubit is the “transmon,” which has a low sensitivity to noise. Processors with more than 50 transmons are readily available, and a system with 127 transmons was recently demonstrated. Despite these achievements, transmons have operational issues that could hinder systems containing larger numbers of these qubits. Now Baleegh Abdo and colleagues at IBM Research Center in New York have developed a new superconducting qubit that solves one of these problems [1]. The new qubit could potentially replace transmons in the next set of superconducting quantum processors.
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