A new paper describes how to use environmental measurements to gain information about a quantum system that would otherwise be unavailable. K. W. Murch, S. J. Weber, C. Macklin, and I. Siddiqi controlled a superconducting quantum system called a transmon by performing measurements on the cavity in which it resided. In that way, they were able to monitor the transition between quantum states in the transmon without directly interacting with it. This experiment demonstrates an effective way to get around decoherence in at least some systems, which could be significant for quantum computing.
A peek at the early days of the Quantum AI Lab: a partnership between NASA, Google, and a 512-qubit D-Wave Two quantum computer.
Quantum computing now gets a bigger push from 2 giants, Google and NASA, together with a consortium of universities, to launch the Quantum Computing AI Lab. It will use the most advanced commercial quantum computer available now, the D-Wave Two.