Real-time dynamics of single-electron pumping

2012/07/02 by Chuan-Yu Lin, Lin, Chuan-Yu, Weimin Zhang +1
Materials Science · Physics and Astronomy · #Atomic and Subatomic Physics Research #Diamond and Carbon-based Materials Research #FOS: Physical sciences #Mechanical and Optical Resonators #Mesoscale and Nanoscale Physics (cond-mat.mes-hall)

paper · pdf · doi:10.48550/arxiv.1207.0284

openalex publication_date 2012/07/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

In this Letter, we study the real-ime dynamics of single-electron pumpings. We modulate the left tunneling barrier along with the dot level but slightly changing the right barrier to operate the single-electron pumping device at zero bias. We show the adiabatic to the non-adiabatic transition in pumping operations. We also find that the relation I=eω/2π is only valid in the low operating frequency adiabatic regime.

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