A Double Quantum Dot as an Artificial Two-Level System
スポンサーリンク
概要
- 論文の詳細を見る
We study an artificial two-level system formed by a double quantum dot. Microwave spectroscopy experiments are discussed, in which we show that the inter-dot coupling can be tuned from ionic-like to covalent-like. The current through the double dot system is dependent on the applied microwave power and, in case of strong inter-dot coupling, the separation between the bonding and anti-bonding state is power dependent as well. We measure the elastic and inelastic transitions between the two levels. The inelastic transition rates are well described by Bose-Einstein statistics. Acoustic phonons are the most effectively coupled bosons in the solid-state environment of the two-level system.
- Publication Office, Japanese Journal of Applied Physics, Faculty of Science, University of Tokyoの論文
- 2001-03-30
著者
-
Tarucha Seigo
Ntt Basic Research Laboratories
-
Kouwenhoven Leo
Department Of Applied Physics And Dimes Delft University Of Technology
-
Fujisawa Toshimasa
Ntt Basic Research Laboratories
-
Van Der
Departement Wiskunde Katholieke Universiteit Leuven
-
Wiel Wilfred
Department of Applied Physics, DIMES, and ERATO Mesoscopic Correlation Project, Delft University of Technology, P.O. Box 5046, 2600 GA Delft, The Netherlands
-
Tarucha Seigo
NTT Basic Research Laboratories, Atsugi-shi, Kanagawa 243-0198, Japan
-
Fujisawa Toshimasa
NTT Basic Research Laboratories, Atsugi-shi, Kanagawa 243-0198, Japan
関連論文
- Sequence of Oral Bacterial Co-adhesion and Non-contact Brushing
- Mycobacterium xenopi Infection of the Spine : A Case Report and Literature Review
- Increased Prevalence of Abnormal Immunoglobulin M, G, and A Concentrations at Clinical Onset of Insulin-Dependent Diabetes Mellitus : A Registry-Based Study
- Quantification of free and total sialic acid excretion by LC-MS/MS
- Bidirectional Current Drag Induced by Two-Electron Cotunneling in Coupled Double Quantum Dots
- Spin-conserved Single-electron Transport between Zeeman Sublevels in a Few-electron Quantum Dot
- Electrostatic coupling between two double-quantum dots studies by resonant tunneling current
- Long Spin Relaxation Time Observed in a Lateral Quantum Dot
- Toll-like receptor 4 plays a protective role in pulmonary tuberculosis in mice
- Compartmentation of Alternative Oxidase in Plant Mitochondria