Cooling of nanomechanical resonator by thermally activated single-electron transport

Abstract

We show that the vibrations of a nanomechanical resonator can be cooled to near its quantum ground state by tunnelling injection of electrons from an STM tip. The interplay between two mechanisms for coupling the electronic and mechanical degrees of freedom results in a bias-voltage dependent difference between the probability amplitudes for vibron emission and absorption during tunneling. For a bias voltage just below the Coulomb blockade threshold we find that absorption dominates, which leads to cooling corresponding to an average vibron population of the fundamental bending mode of 0.2.

arXiv comment4 pages, 2 figures, submitted to Phys. Rev. Lett

References in corpus (6)

• Laser cooling of a nanomechanical resonator mode to its quantum ground state
• Electrical generation and absorption of phonons in carbon nanotubes
• Cooling carbon nanotubes to the phononic ground state with constant electron current
• Cooling of a suspended nanowire by an AC Josephson current flow
• Electromechanical instability in suspended carbon nanotubes
• Cooling a vibrational mode coupled to a molecular single-electron transistor

Cited by in corpus (18)

• Micrometre-scale refrigerators
• Ultrasensitive Displacement Noise Measurement of Carbon Nanotube Mechanical Resonators
• Cooling and Self-Oscillation in a Nanotube Electro-Mechanical Resonator
• Vibrational cooling and thermoelectric response of nanoelectromechanical systems
• Microscopic model of a phononic refrigerator
• Ground-State Cooling of a Mechanical Oscillator by Interference in Andreev Reflection
• Cooling by heating in nonequilibrium nanosystems
• Boosting thermoelectric efficiency using time-dependent control
• Thermoelectric transport through a quantum nanoelectromechanical system and its backaction
• Charge-vibration interaction effects in normal-superconductor quantum dots
• Spintronics-based mesoscopic heat engine
• Mechanically Induced Thermal Breakdown in Magnetic Shuttle Structures
• Phononic heat transport in nanomechanical structures: steady-state and pumping
• Quantum thermocouples: nonlocal conversion and control of heat in nanostructures
• Vibrational assisted conduction in a molecular wire
• Nonequilibrium Green's functions in the study of heat transport of driven nanomechanical systems
• Ground state cooling of nanomechanical resonators by electron transport
• Suppression of stochastic fluctuations of suspended nanowires by temperature-induced single-electron tunnelling