Enhancement of Current Auto- and Cross-Correlations in Double Quantum Dots

• Authors: G. Michałek , B. Bułka
• Languages of publication: EN

Abstracts

EN

Studies of an enhancement of current shot noises are presented for a device of two large quantum dots coupled capacitively. We analyze current-current correlation functions, and show that a dynamical Coulomb blockade is responsible for an enhancement of the Fano factors. This process can lead also to an electron bunching and positive current cross-correlations. Our theoretical results are discussed in light of recent shot noise experiments.

Keywords

EN

73.23.Hk; 73.63.Kv; 73.50.Td

Discipline

• 73.23.Hk: Coulomb blockade; single-electron tunneling
• 73.63.Kv: Quantum dots
• 73.50.Td: Noise processes and phenomena

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2009
• Volume: 115
• Issue: 1
• Pages: 117-119

Dates

published

2009-01

Contributors

author

G. Michałek

• Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland

author

B. Bułka

• Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland

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Identifiers

DOI

10.12693/APhysPolA.115.117