- Spin-orbit qubits are right at home in electrical circuits. A Princeton-Joint Quantum Institute (JQI) collaboration announces the successful excitation of a spin qubit using a resonant cavity. The circuit, via the cavity, senses the presence of the qubit as if it were a bit of capacitance. http://jqi.umd.edu/news/357-bus-service-for-qubits.html 40 comments science