Spectator and data qubits

Qubits are more prone to errors than classical bits due to imperfections in controls and unwanted interaction with the environment. Measuring these noise sources can be difficult and often the qubit itself is the best detector.  The Brown Lab is part of a joint US and Australia Multi-University Research Inititative (MURI) to explore whether systems which simulatneously use part of the qubits for information processing (data qubits) and part of the qubits to measure noise (spectator qubits) can improve the reliability of quantum computers.

More information about the project and the collaboration is available here.