Researchers Create New Type of Qubit with Built-In Error Correction
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Researchers have developed a new physical qubit using a laser pulse that has a built-in capacity for error correction. This could eliminate the need to couple multiple qubits to make a logical qubit.
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Typical photonic qubits using single photons are prone to errors and information loss. The new approach uses a laser pulse with multiple photons, converted into a quantum optical state.
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The built-in error correction capacity could in principle immediately fix errors, though the quality is not yet sufficient for fault tolerance.
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The new qubit transforms non-error correctable qubits into correctable ones using innovative quantum optical methods.
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The development demonstrates the possibility of creating logical qubits with error correction capacity from the start, though further improvements are still needed.