UCBNE Researchers and the search for Dark Matter

February 12, 2021

UCBNE Professor Karl van Bibber and his group of researchers were featured on campus news for their recent publication in Nature introducing a new experiment to harness the "weirdness of quantum mechanics to accelerate the search for the axion, one of two leading hypothetical subatomic particles that may make up the bulk of dark matter in the universe."

This new technique, called quantum squeezing, allowed the HAYSTAC detector to search for axions at twice the speed as before. “The HAYSTAC detector was already essentially at the quantum limit, and now we’ve actually found a way of circumventing the quantum limit entirely,” said co-author Karl van Bibber, executive associate dean at Berkeley’s College of Engineering and one of the senior researchers on the HAYSTAC project. “Several theoretical works are now predicting that the axion mass is right in the frequency range where HAYSTAC is ready to go next. And we’ve got the cavities and amplifiers all lined up and ready to search.”

Great work and congratulations to the research team, Very exciting developments!