Complex quantum scattering and the breakdown of the quantum Hall effect

V. Nikos Nicopoulos; Stuart Alan Trugman

doi:10.1103/PhysRevLett.65.779

Complex quantum scattering and the breakdown of the quantum Hall effect

V. Nikos Nicopoulos
, Stuart Alan Trugman

Los Alamos National Laboratory

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

Quantum potential scattering from abrupt scatterers is studied nonperturbatively in the quantum Hall regime. Complex scattering dynamics including sharp resonances are observed for the first time in this regime. Inter-Landau-level tunneling is strongly enhanced by extended scatterers. The calculated threshold field is in agreement with breakdown experiments. An exact transfer-matrix method and a quasiclassical Wigner-function method are used to extract both amplitudes and phases of the scattering matrix.

Original language	English
Pages (from-to)	779-782
Number of pages	4
Journal	Physical Review Letters
Volume	65
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevLett.65.779
State	Published - Jan 1 1990

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title = "Complex quantum scattering and the breakdown of the quantum Hall effect",

abstract = "Quantum potential scattering from abrupt scatterers is studied nonperturbatively in the quantum Hall regime. Complex scattering dynamics including sharp resonances are observed for the first time in this regime. Inter-Landau-level tunneling is strongly enhanced by extended scatterers. The calculated threshold field is in agreement with breakdown experiments. An exact transfer-matrix method and a quasiclassical Wigner-function method are used to extract both amplitudes and phases of the scattering matrix.",

author = "Nicopoulos, \{V. Nikos\} and Trugman, \{Stuart Alan\}",

year = "1990",

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AU - Trugman, Stuart Alan

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N2 - Quantum potential scattering from abrupt scatterers is studied nonperturbatively in the quantum Hall regime. Complex scattering dynamics including sharp resonances are observed for the first time in this regime. Inter-Landau-level tunneling is strongly enhanced by extended scatterers. The calculated threshold field is in agreement with breakdown experiments. An exact transfer-matrix method and a quasiclassical Wigner-function method are used to extract both amplitudes and phases of the scattering matrix.

AB - Quantum potential scattering from abrupt scatterers is studied nonperturbatively in the quantum Hall regime. Complex scattering dynamics including sharp resonances are observed for the first time in this regime. Inter-Landau-level tunneling is strongly enhanced by extended scatterers. The calculated threshold field is in agreement with breakdown experiments. An exact transfer-matrix method and a quasiclassical Wigner-function method are used to extract both amplitudes and phases of the scattering matrix.

UR - https://www.scopus.com/pages/publications/0008000482

U2 - 10.1103/PhysRevLett.65.779

DO - 10.1103/PhysRevLett.65.779

M3 - Article

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VL - 65

SP - 779

EP - 782

JO - Physical Review Letters

JF - Physical Review Letters

IS - 6

ER -

Complex quantum scattering and the breakdown of the quantum Hall effect

Abstract

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