Quantum Monte Carlo study of composite fermions in quantum dots

The effect of Landau-level mixing

A. D. Güçlü, Gun Sang Jeon, C. J. Umrigar, Jainendra K. Jain

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

Composite fermion wave functions projected onto the lowest Landau level, provide an accurate description of two-dimensional quantum dots in the limit of strong magnetic fields. We show that the range of validity of these wave functions can be extended to smaller magnetic fields by incorporating Landau level mixing effects with the variational and diffusion Monte Carlo methods. We apply our method to 14 and 15 electron systems to study ground state properties in the fractional quantum Hall regime. Landau level mixing is found to be important for a quantitative understanding of experimental addition spectra.

Original languageEnglish (US)
Article number205327
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume72
Issue number20
DOIs
StatePublished - Nov 15 2005

Fingerprint

Fermions
Wave functions
Semiconductor quantum dots
fermions
quantum dots
Magnetic fields
composite materials
Composite materials
wave functions
Ground state
Monte Carlo methods
magnetic fields
Monte Carlo method
Electrons
ground state
electrons

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

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Quantum Monte Carlo study of composite fermions in quantum dots : The effect of Landau-level mixing. / Güçlü, A. D.; Jeon, Gun Sang; Umrigar, C. J.; Jain, Jainendra K.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 72, No. 20, 205327, 15.11.2005.

Research output: Contribution to journalArticle

TY - JOUR

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T2 - The effect of Landau-level mixing

AU - Güçlü, A. D.

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AU - Umrigar, C. J.

AU - Jain, Jainendra K.

PY - 2005/11/15

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