Influences of spin-orbit interaction on quantum speed limit and entanglement of spin qubits in coupled quantum dots

被引：4
|
作者：
Harouni, M. Bagheri [1 ]
机构：
[1] Univ Isfahan, Dept Phys, Quantum Opt Grp, Hezar Jerib St, Esfahan 8176473441, Iran
来源：
CHINESE PHYSICS B | 2021年 / 30卷 / 09期
关键词：
quantum speed limit time; quantum entanglement; open quantum systems; spin-orbit effects; STATE;
D O I：
10.1088/1674-1056/abeef4
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
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.
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收藏
页数：7
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