Have quantum scars been observed?

T. S. Monteiro, D. Delande and J.-P. Connerade
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T. S. Monteiro: University College London
D. Delande: Laboratoire Kastler Brossel, 4 Place Jussieu
J.-P. Connerade: Blackett Laboratory, Imperial College

Nature, 1997, vol. 387, issue 6636, 863-864

Abstract: Abstract Wilkinsonet al.1 have reported observations of oscillations in the current of a resonant tunnelling diode in a magnetic field. They proposed that this provides the first direct experimental evidence for quantum ‘scarring’ in a real chaotic system. But we believe that Wilkinson et al. have not observed quantum scars in the usual sense. They considered a far-from semiclassical regime where current theories of scarring are not valid. Demonstrating these effects in a solid-state device is a tremendous achievement. However, we believe that even in the semiclassical limit this type of experiment does not go beyond other experiments on atoms in magnetic fields as a probe of scarring.

Date: 1997
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DOI: 10.1038/43096

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