Anomalous structure in the single particle spectrum of the fractional quantum Hall effect

O. E. Dial (), R. C. Ashoori (), L. N. Pfeiffer and K. W. West
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O. E. Dial: Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
R. C. Ashoori: Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
L. N. Pfeiffer: Alcatel-Lucent Bell Laboratories, Murray Hill, New Jersey 07974, USA
K. W. West: Alcatel-Lucent Bell Laboratories, Murray Hill, New Jersey 07974, USA

Nature, 2010, vol. 464, issue 7288, 566-570

Abstract: Structural oddities A two-dimensional gas of electrons is a powerful test-bed of the fundamental physics of interacting particles, and has been much studied in the context of integer and fractional quantum Hall effects. The latest observations of this system by Oliver Dial and colleagues reveal that it still holds some surprises in store: they observe prominent structure in the high-energy single particle spectrum that cannot be readily explained by existing models of this otherwise thoroughly investigated system.

Date: 2010
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DOI: 10.1038/nature08941

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