Science & Technology

Quantum Levitation

A thin superconductor layer (~1µm thick) is coated on a sapphire wafer. Quantum physics tells us that the magnetic field penetrates into the superconductor in the form of discrete flux tubes. The superconductor strongly pins these tubes, causing it to float in midair. This effect is called ‘quantum levitation’. We start with a single crystal […]

1 13 14 15 16 17 22