Kondo Force in Shuttling Devices: Dynamical Probe for a Kondo Cloud

Abstract

We consider electromechanical properties of a single-electronic device consisting of movable quantum dot attached to a vibrating cantilever, forming a tunnel contact with a non-movable source electrode. We show that the resonance Kondo tunneling of electrons amplify exponentially the strength of nanoelectromechanical (NEM) coupling in such device and makes the latter to be insensitive to mesoscopic fluctuations of electronic levels in a nano-dot. It is also shown that the study of Kondo-NEM phenomenon provides an additional (as compared with a standard conductance measurements in a non-mechanical device) information on retardation effects in formation of many-particle cloud accompanied the Kondo tunneling. A possibility for superhigh tunability of mechanical dissipation as well as supersensitive detection of mechanical displacement is demonstrated.

4.5 pages, 2 figures

References in corpus (8)

• Kondo effect in quantum dots
• Microwave cavity-enhanced transduction for plug and play nanomechanics at room temperature
• Pumping of vibrational excitations in a Coulomb blockaded suspended carbon nanotube
• Resonance approximation and charge loading/unloading in adiabatic quantum pumping
• Electronic Aharonov-Bohm Effect Induced by Quantum Vibrations
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Cited by in corpus (7)

• Nanomechanical characterization of the Kondo charge dynamics in a carbon nanotube
• Detecting Kondo Entanglement by Electron Conductance
• Strong vibration nonlinearity in semiconductor-based nanomechanical systems
• Electronic spin working mechanically
• Tunable RKKY interaction in a double quantum dot nanoelectromechanical device
• Dynamics of the impurity screening cloud following quantum quenches of the Resonant Level Model
• Self-sustained oscillations in nanoelectromechanical systems induced by Kondo resonance