A recent study reported by Jacek Krywko for Ars Technica explores how analyzing the electrical noise in copper-based superconductors can shed light on the 'pseudogap' phenomenon, where electrons seem to disappear at certain temperatures. Researchers from Ludwig Maximilian University and Utrecht University employed a scanning tunneling microscope to measure shot noise in BSCCO crystals, leading to insights about electron pairing and its relationship to superconductivity.