niconiconicnic0 t1_j2bi92y wrote on December 31, 2022 at 12:53 AM

Reply to comment by arcosapphire in harnessing quantum mechanics, physicists discovered a new way to observe objects without directly looking at them. Using a superconducting qubit called a transmon device, they were able to “see” microwave pulses generated by classical instruments without having to absorb or re-emit any light waves. by MistWeaver80

>We show that it is possible to ascertain the presence of a microwave pulse resonant with the second transition of the transmon, while at the same time avoid exciting the device onto the third level. Experimentally, this is done by using a series of Ramsey microwave pulses coupled into the first transition and monitoring the ground-state population.

from the paper