Chinese-German team unveils room-temperature magnetometer for dark matter search

Researchers from China and Germany have developed a table-top magnetometer operating at room temperature with femtotesla sensitivity, a billion times finer than Earth's magnetic field. The device, named LeMaMa, uses a levitated magnet to detect faint magnetic signals, potentially enabling new searches for dark matter particles. The breakthrough is at prototype stage; its practical impact on dark matter detection remains unproven.