Interfacing carbon nanotubes and Bose-Einstein condensates of atoms
- interfacing different kinds of degrees of freedom (electronic, spin, motional, etc.)
- controlled mesoscopic transport
- ultracold atoms as a tool for quantum measurement
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.
- Prof. József Fortágh, Universitat Tübingen
- O. Kálmán, T. Kiss, J. Fortágh, and P. Domokos: Quantum Galvanometer by Interfacing a Vibrating Nanowire and Cold Atoms, Nano Lett., 2012, 12, 435–439 (2012)