Ground-State Properties of an Artificial Molecule: a Simple Model Calculation for the Double Quantum Dot

Autor: Hou-zhi Zheng, Jian-qiang You
Rok vydání: 1999
Předmět:
Zdroj: Chinese Physics Letters. 16:594-596
ISSN: 1741-3540
0256-307X
Popis: The ground state of a double quantum-dot structure is studied by a simplified Anderson-type model. Numerical calculations reveal that the ground-state level of this artificial molecule increases with the increasing single particle level of the dot, and also increases with the decreasing transfer integrals. We show the staircase feature of the electron occupation and the properties of the ground-state eigenvector by varying the single particle level of the dot.
Databáze: OpenAIRE