Phys.org October 28, 2020
Controlling magnetism, essential for a wide range of technologies, is impaired by the impossibility of generating a maximum of magnetic field in free space. An international team of researchers (Spain, Italy, UK) circumvented the limits to shape magnetic fields by creating a device comprised of a careful arrangement of electrical wires. This creates additional fields that counter act the effects of the unwanted magnetic field. While a similar effect has been achieved at much higher frequencies, this team has achieved the same at low frequencies and static fields—such as biological frequencies—which will unlock a host of useful applications. Possible future applications for this work include: Quantum technology and quantum computing, Neuroimaging, and Biomedicine…read more. TECHNICAL ARTICLE
…The lighter ends of the ribbon show magnetic states. The inset drawing shows how the ends have up and down spin, suitable for creating qubits. (Image: ORNL)