| Influences of spin–orbit interaction on quantum speed limit and entanglement of spin qubits in coupled quantum dots |
| |
| 引用本文： | M Bagheri Harouni. Influences of spin–orbit interaction on quantum speed limit and entanglement of spin qubits in coupled quantum dots[J]. 中国物理 B, 2021, 30(9): 90301-090301. DOI: 10.1088/1674-1056/abeef4 |
| |
| 作者姓名： | M Bagheri Harouni |
| |
| 作者单位： | Quantum Optics Group, Department of Physics, University of Isfahan, Hezar Jerib St., Isfahan 81764-73441, Iran |
| |
| 摘 要： | Quantum speed limit and entanglement of a two-spin Heisenberg XYZ system in an inhomogeneous external magnetic field are investigated. The physical system studied is the excess electron spin in two adjacent quantum dots. The influences of magnetic field inhomogeneity as well as spin–orbit coupling are studied. Moreover, the spin interaction with surrounding magnetic environment is investigated as a non-Markovian process. The spin–orbit interaction provides two important features: the formation of entanglement when two qubits are initially in a separated state and the degradation and rebirth of the entanglement.
|
| 收稿时间： | 2020-10-07 |
Influences of spin-orbit interaction on quantum speed limit and entanglement of spin qubits in coupled quantum dots |
| |
| M Bagheri Harouni. Influences of spin-orbit interaction on quantum speed limit and entanglement of spin qubits in coupled quantum dots[J]. Chinese Physics B, 2021, 30(9): 90301-090301. DOI: 10.1088/1674-1056/abeef4 |
| |
| Authors: | M Bagheri Harouni |
| |
| Affiliation: | Quantum Optics Group, Department of Physics, University of Isfahan, Hezar Jerib St., Isfahan 81764-73441, Iran |
| |
| Abstract: | Quantum speed limit and entanglement of a two-spin Heisenberg XYZ system in an inhomogeneous external magnetic field are investigated. The physical system studied is the excess electron spin in two adjacent quantum dots. The influences of magnetic field inhomogeneity as well as spin-orbit coupling are studied. Moreover, the spin interaction with surrounding magnetic environment is investigated as a non-Markovian process. The spin-orbit interaction provides two important features: the formation of entanglement when two qubits are initially in a separated state and the degradation and rebirth of the entanglement. |
| |
| Keywords: | quantum speed limit time quantum entanglement open quantum systems spin-orbit effects |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《中国物理 B》浏览原始摘要信息 |
|
点击此处可从《中国物理 B》下载免费的PDF全文 |
