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What is a cat qubit?
Some quantum hardware stores information in microwave oscillator states inside superconducting circuits. Cat qubits take their name from quantum superpositions reminiscent of Schrödinger’s famous thought experiment.
Conceptual graphic
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The two ‘coherent states’ (+α and −α) behave like two well-separated positions of an oscillator. The farther apart they are, the harder it is for noise to flip one into the other.
