Rigetti Computing is pursuing a more universal gate-based quantum system that theoretically should be able to solve more complex computational problems. The company uses a modular chip architecture ...

Last week, D-Wave announced a new version of its quantum annealing computer. The new machine includes a number of technical improvements, as well as a significant change to the physical arrangement of ...

The D-Wave quantum annealer isn’t a general-purpose computer, in that it can only solve a set of problems that can be structured as energy minimizations. And even on those problems, D-Wave employees ...