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Quantum Chemistry
Imaging fractal conductance fluctuations and scarred wave functions in a quantum billiard.
PubMed
Authors: Crook R, Smith CG, Graham AC, Farrer I, Beere HE, Ritchie DA
Year
2003
Paper ID
13011
Status
Peer-reviewed
Abstract Read
~2 min
Abstract Words
82
Citations
N/A
Abstract
We present scanning-probe images and magnetic-field plots which reveal fractal conductance fluctuations in a quantum billiard. The quantum billiard is drawn and tuned using erasable electrostatic lithography, where the scanning probe draws patterns of surface charge in the same environment used for measurements. A periodicity in magnetic field, which is observed in both the images and plots, suggests the presence of classical orbits. Subsequent high-pass filtered high-resolution images resemble the predicted probability density of scarred wave functions, which describe the classical orbits.
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- This paper contributes to the Quantum Chemistry research area in the Quantum Articles archive.
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- We present scanning-probe images and magnetic-field plots which reveal fractal conductance fluctuations in a quantum billiard.
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