Excited-state spectroscopy on a quantum dot side coupled to a quantum wire

2008/07/23 by Takaharu Otsuka, Tomohiro Otsuka, Eisuke Abe +3 · 9 citations
Computer Science · Physics and Astronomy · #Atomic physics #Condensed matter physics #Excited state #Magnetic field #Optoelectronics #Physics #Quantum #Quantum Information and Cryptography #Quantum and electron transport phenomena #Quantum dot #Quantum dot laser #Quantum mechanics #Quantum wire #Semiconductor #Semiconductor Quantum Structures and Devices #Semiconductor laser theory #Spectroscopy #Zeeman effect #cond-mat.mes-hall

paper · pdf · doi:10.1063/1.2987424

published in Applied Physics Letters 93(11) (American Institute of Physics) · 3 pages, 4 figures

arxiv created 2008/07/23 · openalex publication_date 2008/09/15 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We report excited-state spectroscopy on a quantum dot side coupled to a quantum wire with accurate energy estimation. Our method utilizes periodic voltage pulses on the dot, and the energy calibration is performed with reference to the bias voltage across the wire. We demonstrate the observation on the orbital excited state and the Zeeman splitting in a single dot.

Citations

• Fano Effect in a Few-Electron Quantum Dot
• Coulomb-Modified Fano Resonance in a One-Lead Quantum Dot
• Fano resonance in a quantum wire with a side-coupled quantum dot
• Zeeman Energy and Spin Relaxation in a One-Electron Quantum Dot
• Spin filling of a quantum dot derived from excited-state spectroscopy