A team at Harvard and Technical University of Vienna have invented a new tunable laser that uses a series of rings to smoothly emit many light wavelengths from a single chip. The laser could replace many of today’s products that face tradeoffs in accuracy, range, and cost.

Columbia Engineering researchers have developed HyperQ, a novel system that enables multiple users to share a single quantum computer simultaneously through isolated quantum virtual machines (qVMs). This key development brings quantum computing closer to real-world usability—more practical, efficient, and broadly accessible.