The team’s Chmethod is not only more effective than other state-of-the-art methods for erasing the qubit chalkboard because of the lower temperatures it achieves, but it also achieves them in a novel ...

The laser is set up to shine across the lecture hall. Turn off the lights. Clap the two chalk erasers together as you walk along the beam. Holding the erasers just under the beam seems to work well.

First, make sure all obvious chalk dust is removed with the chalkboard eraser. Use up and down motions when wiping the ...