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Coulomb Blockade Simulation

By Xufeng Wang1, Bhaskaran Muralidharan1, Gerhard Klimeck1

1. Purdue University

Simulate Coulomb Blockade through Many-Body Calculations in a single and double quantum dot system

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Version 2.1.3 - published on 22 Aug 2014

doi:10.4231/D3C24QP1W cite this

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Abstract

This tool computes the current-voltage (I-V) characteristics of quantum dot structures based on the Coulomb Blockade model [1]. The aim is to explore various single charge phenomena that can be noticed via I-V measurements. These include coulomb blockade current plateaus, Negative Differential Resistance (NDR), electronic excitation spectroscopy and spin blockade in double quantum dots.

The tool is supported by an additional resource entitled Introduction to Quantum Dot Lab which provides a tutorial to the tool. A tutorial level introduction to the underlying theory can be found in chapters 5 and 6 of “Electron-Phonon and Electron-Electron Interactions in Quantum Transport”, Gerhard Klimeck, Ph.D. thesis, Purdue University, 1994.

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References

[1] “Few electron Quantum dots”, L. P. Kouwenhoven, D. G. Austing, and S. Tarucha, Rep. Prog. Phys., 64, 701, (2001).

[2] “Spins in few-electron Quantum dots”, R. Hanson, L. P. Kouwenhoven, J. R. Petta, S. Tarucha, and L. M. Vandersypen, Rev. Mod. Phys., 79, 1217, (2007).

[3] “Conductance Spectroscopy in Coupled Quantum Dots”, Gerhard Klimeck, Guanlong L. Chen and Supriyo Datta, Phys. Rev. B, Vol. 50, p.2316 (1994).

[4] “Elastic and Inelastic Scattering in Quantum Dots in the Coulomb Blockade Regime”, Gerhard Klimeck, Roger Lake, Supriyo Datta, and Garnett Bryant, Phys. Rev. B, Vol. 50, 5484 (1994).

[5] Chapters 5 and 6 of “Electron-Phonon and Electron-Electron Interactions in Quantum Transport”, Gerhard Klimeck, Ph.D. thesis, Purdue University, 1994,

[6] “Probing electronic excitations in molecular conduction”, B. Muralidharan, A. W. Ghosh, and S. Datta, Phys. Rev. B, 73, 155410, (2006).

[7] “Current rectification by Pauli exclusion in a weakly coupled double quantum dot system”, K. Ono, D. G. Austing, Y. Tokura, and S. Tarucha, Science, 297, 1313, (2002).

Cite this work

Researchers should cite this work as follows:

  • Xufeng Wang; Bhaskaran Muralidharan; Gerhard Klimeck (2014), "Coulomb Blockade Simulation," http://nanohub.org/resources/coulombsim. (DOI: 10.4231/D3C24QP1W).

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