Coulomb Interaction in Quantum Dot with a Precessing Magnetic Field |
| |
Authors: | WU Liu-Po ZHOU Shi-Ping SONG Hong-Yan SHI Yao-Ming |
| |
Institution: | Department of Physics, Shanghai University, Shanghai 200444, China |
| |
Abstract: | We study electronic transport through a quantum dot (QD) with a precessing magnetic field. By using the Keldysh nonequilibrium Green function method, formulas of local density of states (LDOS) and conductance of QD are derived self-consistently. It shows that the LDOS and conductance
have obvious changes with the Coulomb blockade interaction. The intensity
and angle of the magnetic field or temperatures, which reflect the
mesoscopic structure of the QD are derived. The superiority of this device is that the QD can be controlled easily by the magnetic field, so it is
valuable to apply in generating, manipulating and probing spin state. |
| |
Keywords: | Coulomb interaction quantum dot precessing magnetic field |
本文献已被 维普 等数据库收录! |
| 点击此处可从《理论物理通讯》浏览原始摘要信息 |
| 点击此处可从《理论物理通讯》下载免费的PDF全文 |
|