Prof. Tongcang Li (left), Dr. Yuanbin Jin (center) and Kunhong Shen conduct experiments with floating and rotating fluorescent diamonds at Purdue University. Image credit: Purdue University Photo by Charles Jischke A new milestone in levitating optomechanics was achieved by Prof. Tongcang Li’s group by observing the Berry phase of electron spins in nano-sized diamonds levitated […]