Quantum shuttle in phase space.
We present a quantum theory of the shuttle instability in electronic transport through a nanostructure with a mechanical degree of freedom. A phase space formulation in terms of the Wigner function allows us to identify a crossover from the tunneling to the shuttling regime, thus extending the previously found classical results to the quantum domain. Further, a new dynamical regime is discovered, where the shuttling is driven exclusively by the quantum noise.
Novotný
Tomás
T
Mikroelektronik Centret, Technical University of Denmark, Ørsteds Plads, Building 345 east, DK-2800 Kgs. Lyngby, Denmark. tno@mic.dtu.dk
Donarini
Andrea
A
Jauho
Antti-Pekka
AP