Spin evolution of two valence electrons in two separated ions

30th International Conference on Photonic, Electronic, and Atomic Collisions

Goswamit, Biplab^1 ; Volotka, Andrey V.^1 ; Fritzsche, Stephan^1,2

Helmholtz-Institut Jena, Fröbelstieg 3, Jena

D-07743, Germany^1

Theoretisch-Physikalisches Institut, Friedrich-Schiller-Universitat Jena, Jena

D-07743, Germany^2

关键词: Breit equation;    Leading orders;    Magnetic interactions;    Single electron;    Spin orbit interactions;    Spin-spin interaction;    Time evolutions;    Valence electron;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/875/6/052007/pdf
DOI  :  10.1088/1742-6596/875/6/052007

来源: IOP

【 摘 要 】

Synopsis The spin evolution of two spin-1/2 valence electrons, located at two separated ions, is investigated with the help of Breit equation. This evolution that arise solely depends on their dipole-dipole magnetic interaction. Special attention is paid to the effects beyond the leading order of the dipole-dipole magnetic interaction. In contrast to just including the leading order, it is found that the spin-spin interactions flips the spin of both electrons together, while the spin-orbit interactions typically changes the spin of just single electron. As a consequence, different behaviour is observed in the time evolution of two different entangled Bell states.