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Damping of a nanomechanical oscillator strongly coupled to a quantum dot
Steven D. Bennett, Lynda Cockins, Yoichi Miyahara +2
We present theoretical and experimental results on the mechanical damping of an atomic force microscope cantilever strongly coupled to a self-assembled InAs quantum dot. When the c…
Inelastic Backaction due to Quantum Point Contact Charge Fluctuations
C. E. Young, A. A. Clerk
We study theoretically transitions of a double quantum-dot qubit caused by nonequilibrium charge fluctuations in a nearby quantum point contact (QPC) used as a detector. We show th…
Energy levels of few electron quantum dots imaged and characterized by atomic force microscopy
Lynda Cockins, Yoichi Miyahara, Steven D. Bennett +5
Strong confinement of charges in few electron systems such as in atoms, molecules and quantum dots leads to a spectrum of discrete energy levels that are often shared by several de…
Preparation and Detection of a Mechanical Resonator Near the Ground State of Motion
T. Rocheleau, T. Ndukum, C. Macklin +3
We have cooled the motion of a radio-frequency nanomechanical resonator by parametric coupling to a driven microwave frequency superconducting resonator. Starting from a thermal oc…
Back-action Evading Measurements of Nanomechanical Motion
J. B. Hertzberg, T. Rocheleau, T. Ndukum +3
When performing continuous measurements of position with sensitivity approaching quantum mechanical limits, one must confront the fundamental effects of detector back-action. Back-…
Theory of non-equilibrium transport in the SU(N) Kondo regime
Christophe Mora, Pavel Vitushinsky, Xavier Leyronas +2
Using a Fermi liquid approach, we provide a comprehensive treatment of the current and current noise through a quantum dot whose low-energy behaviour corresponds to an SU() Kond…