Majorana Replication Controversy (Frolov et al., Science)

A team led by Sergey Frolov published replication studies in Science finding that signals previously interpreted as Majorana qubit signatures could be explained by simpler mechanisms when fuller datasets were analysed. The work underwent two years of peer review.

Context: This is separate from QuTech's February 2026 Nature paper demonstrating successful Majorana qubit readout via quantum capacitance, which remains uncontested. The controversy reinforces the value of diverse hardware strategies rather than undermining topological computing overall.