Interfacing carbon nanotubes and Bose-Einstein condensates of atoms
Quantum galvanometer on an atom chip. A BEC is loaded into the magnetic microtrap created by classical electric currents through integrated conductors on a dielectric substrate (represented on the bottom of the chip). A suspended carbon nanotube (CNT) is also part of the electric circuit and transports the quantum current. The mechanically oscillating CNT creates a magnetic field inducing hyperfine transitions in the atoms. Atoms thus transferred to untrapped states are detected by single-atom detector.