期刊
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
卷 99, 期 -, 页码 145-151出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physe.2018.01.011
关键词
Quantum decoherence; Spin-orbit coupling; Quantum dot
We investigate quantum decoherence of spin states caused by Rashba spin-orbit (SO) coupling for an electron confined to a planar quantum dot (QD) in the presence of a magnetic field (B). The Schrodinger equation has been solved in a frame of second-order perturbation theory. The relationship between the von Neumann (vN) entropy and the spin polarization is obtained. The relation is explicitly demonstrated for the InSb semiconductor QD.
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