Influence of a stray magnetic field on the measurement of long-range spin-spin interaction. (23rd May 2018)

• Record Type: Journal Article
• Authors: Goswami, Biplab; Volotka, Andrey V; Fritzsche, Stephan
• Is Part Of: Journal of physics communications. Volume 2:Number 5(2018)
• Publication Date: 2018-05-23
• Subjects: spin-spin coupling -- long-range interaction -- stray magnetic field; Physics -- Periodicals; 530.05
• DOI: 10.1088/2399-6528/aac445
• Languages: English
• ISSNs: 2399-6528

Abstract

Abstract: We study the influence of an additional uncontrolled (stray) magnetic field upon the measurement of long-range spin-spin interaction strength of two spin-1/2 valence electrons bound in two separate ions at well-defined distances from each other. This stray field, which is neither perpendicular nor parallel to the line connecting two ions, could appear due to the Earth magnetic field, or, due to the slight angular misalignment between the applied magnetic field and the line connecting two ions. It is found that the presence of the stray magnetic field plays an important role in the dynamics of the spin-states of two electrons. If neglected in the analysis, moreover, such a stray field may affect the measurement of the spin-spin interaction strength, especially at smaller inter-spin distances.