Tongcang Li, Purdue University, BNNTs containing spin qubits (IMAGE) Purdue University Caption A scanning electron microscope image shows an atomic force microscope tip with a boron nitride nanotube containing a spin qubit. Purdue researchers have developed the technology, which detects off-axis magnetic fields at high resolution better than traditional diamond tips. Credit (Purdue University image/Tongcang Li) Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.