Interacting Electrons and Holes in Quasi-2D Quantum Dots in Strong Magnetic Fields

• Authors: P. Hawrylak , W. Sheng , S. Cheng
• Languages of publication: EN

Abstracts

EN

Theory of optical properties of interacting electrons and holes in quasi-2D quantum dots in strong magnetic fields is discussed. In two dimensions and the lowest Landau level, hidden symmetries control the interaction of the interacting system with light. By confining electrons and holes into quantum dots hidden symmetries can be removed and the excitation spectrum of electrons and excitons can be observed. We discuss a theory electronic and of excitonic quantum Hall droplets at a filling factorν=2. For an excitonic quantum Hall droplet the characteristic emission spectra are predicted to be related to the total spin of electron and hole configurations. For the electronic droplet the excitation spectrum of the droplet can be mapped out by measuring the emission for increasing number of electrons.

Keywords

EN

73.21.-b; 83.35.-p; 73.21.La; 71.35.Ji; 78.67.Hc

Discipline

• 78.67.Hc: Quantum dots
• 71.35.Ji: Excitons in magnetic fields; magnetoexcitons
• 73.21.-b: Electron states and collective excitations in multilayers, quantum wells, mesoscopic, and nanoscale systems(for electron states in nanoscale materials, see 73.22.-f)
• 73.21.La: Quantum dots

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2004
• Volume: 106
• Issue: 3
• Pages: 403-412

Dates

published

2004-09

received

2004-06-10

Contributors

author

P. Hawrylak

• Institute for Microstructural Sciences, National Research Council of Canada, Ottawa, Ontario K1A OR6, Canada

author

W. Sheng

• Institute for Microstructural Sciences, National Research Council of Canada, Ottawa, Ontario K1A OR6, Canada

author

S. Cheng

• Electrophysics Department, National Chiao Tung University, Hsinchu 30050, Taiwan, Republic of China

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Identifiers

DOI

10.12693/APhysPolA.106.403