Superfluid helium qubit could cut quantum error rates 100-fold

· Science

A proposed qubit made with superfluid helium could reduce quantum computing error rates by around 100 times by shielding quantum information from common electromagnetic noise. If experiments confirm the predictions, the technology could work alongside today's superconducting qubits or serve as a new kind of qubit.

Why it matters：Error rates are the main barrier to practical quantum computing; a qubit design with dramatically lower noise could reshape the race to build fault-tolerant quantum machines.

Key points

  • The design uses superfluid helium to protect quantum information from electromagnetic noise.
  • It could complement or compete with existing superconducting qubit technology.

Sources (original reporting)

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