NanoDaily (Nano Technology News)

Quantum Team Reads Information From Robust Majorana Qubits Using Quantum Capacitance

Researchers demonstrated a quantum‑capacitance technique that reads the parity of Majorana‑based qubits in a minimal Kitaev chain, achieving single‑shot, real‑time detection. The modular device—two semiconductor quantum dots linked by a superconducting segment—revealed parity coherence times exceeding one millisecond. This global probing method validates topological protection while providing a practical readout pathway. The work, a joint effort between Delft University of Technology and Spain's ICMM‑CSIC, marks a significant step toward scalable topological quantum processors.