Mechano-electronic and electro-mechanical energy transfer in mesoscopic superconducting weak links
Artikel i vetenskaplig tidskrift, 2012

In this review we discuss how the nano-electro-mechanical properties of a superconducting weak link, formed by a suspended nanowire bridging two superconductors, can strongly affect mesoscopic effects in both the electronic and the mechanical subsystem. In particular we will discuss how quantum coherence and electron–electron (Coulomb) correlations may result in the possibility to resonantly redistribute energy between the electronic and mechanical degrees of freedom, allowing controllable switching between pumping and cooling of the nano-mechanical vibrations of the suspended nanowire. The two regimes of a given current and a given voltage supplied to the nano-electro-mechanical weak link is considered, resulting respectively in the possibility of ground-state cooling or resonant generation of nano-mechanical vibrations for realistic experimental parameters.

Superconducting weak links

Nano-electro-mechanical systems

Författare

Robert I. Shekhter

Göteborgs universitet

Leonid Gorelik

Chalmers, Teknisk fysik, Kondenserade materiens teori

Gustav Sonne

Göteborgs universitet

Mats Jonson

Göteborgs universitet

Comptes Rendus Physique

1631-0705 (ISSN)

Vol. 13 5 426-439

Ämneskategorier

Den kondenserade materiens fysik

DOI

10.1016/j.crhy.2012.01.002

Mer information

Skapat

2017-10-07