The new device is the atomtronic analogue of a transistor
radio
Oscillating circuits are the workhorses of many electronic
devices. In particular, oscillating electrons emit electromagnetic waves, a
mechanism that has lead to one or two applications that readers may have come
across.
Now Seth Caliga and pals at the University of Colorado and
National Institute for Standards and Technology in Boulder have built a version
of this kind of circuit that works with atoms rather than electrons.