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Team Demonstrates Spontaneous Quantum Error Correction


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quantum error correction, illustration

Credit: Uncover Reality

Researchers from the University of Massachusetts Amherst and Northwestern University have devised a novel type of quantum error correction (QEC) where errors are spontaneously corrected. This passive QEC is achieved by tailoring the friction or dissipation experienced by the qubit.

The researchers describe their work in "Protecting a Bosonic Qubit with Autonomous Quantum Error Correction," published in the journal Nature.

"Although our experiment is still a rather rudimentary demonstration, we have finally fulfilled this counterintuitive theoretical possibility of dissipative QEC," says UMass Amherst physicist Chen Wang. "Looking forward, the implication is that there may be more avenues to protect our qubits from errors and do so less expensively. Therefore, this experiment raises the outlook of potentially building a useful fault-tolerant quantum computer in the mid to long run."

From University of Massachusetts Amherst
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