Surrey researchers propose superfluid helium qubit design, claim 100x lower error rate
Physicists at the University of Surrey have designed a new type of qubit, the Superfluid Helium Oscillator Quantum (SHOQ) device, built from superfluid helium-3 rather than superconducting circuits. Published in npj Quantum Information, the team's calculations suggest the charge-neutral design could cut error rates roughly 100-fold compared with conventional superconducting qubits. Lead author Dr. Priya Sharma says it is the first reported qubit concept based on a superfluid.