https://www.sciencedaily.com/releases/2019/09/190918161632.htm

The team, led by Yuping Huang, an associate professor of physics and director of the Center for Quantum Science and Engineering, brings us closer to that goal with a nano-scale chip that facilitates photon interactions with much higher efficiency than any previous system. The new method, reported as a memorandum in the Sept. 18 issue of Optica, works at very low energy levels, suggesting that it could be optimized to work at the level of individual photons -- the holy grail for room-temperature quantum computing and secure quantum communication.

"We're pushing the boundaries of physics and optical engineering in order to bring quantum and all-optical signal processing closer to reality," said Huang.