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13 papers · 2 filters
Spectroscopy of a driven solid-state qubit coupled to a structured environment
M. C. Goorden, M. Thorwart, M. Grifoni
We study the asymptotic dynamics of a driven spin-boson system where the environment is formed by a broadened localized mode. Upon exploiting an exact mapping, an equivalent formul…
Electronic shell effects and the stability of alkali nanowires
D. F. Urban, J. Bürki, A. I. Yanson +4
Experimental conductance histograms for Na nanowires are analyzed in detail and compared to recent theoretical results on the stability of cylindrical and elliptical nanowires, usi…
Spin-orbit-driven coherent oscillations in a few-electron quantum dot
Stefan Debald, Clive Emary
We propose an experiment to observe coherent oscillations in a single quantum dot with the oscillations driven by spin-orbit interaction. This is achieved without spin-polarised le…
Stretching dependence of the vibration modes of a single-molecule Pt-H2-Pt bridge
D. Djukic, K. S. Thygesen, C. Untiedt +3
A conducting bridge of a single hydrogen molecule between Pt electrodes is formed in a break junction experiment. It has a conductance near the quantum unit, G_0 = 2e^2/h, carried…
Exponential sensitivity to dephasing of electrical conduction through a quantum dot
J. Tworzydlo, A. Tajic, H. Schomerus +2
According to random-matrix theory, interference effects in the conductance of a ballistic chaotic quantum dot should vanish when the dephasing time b…
Andreev billiards
C. W. J. Beenakker
This is a review of recent advances in our understanding of how Andreev reflection at a superconductor modifies the excitation spectrum of a quantum dot. The emphasis is on two-dim…