Berkeley Lab observes a quantum fluid in an atomically thin chip

Researchers at Lawrence Berkeley National Laboratory have, for the first time, observed a tunable Bose-Einstein Condensate of excitons within an atomically thin semiconductor, a feat previously limited by exciton lifespans of around a billionth of a second. The findings, published in Nature, demonstrate a new platform for studying quantum fluids and reveal a surprising internal structure within the condensate that responds to magnetic fields. “Previous studies have shown that electrons and holes can bind into excitons, but there wasn’t an easy way…