Dresden 2026 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 36: Molecular Magnetism and Magnetic Particles / Clusters I
MA 36.2: Vortrag
Mittwoch, 11. März 2026, 15:15–15:30, POT/0151
KNB mechanism in convex polygon molecular magnets: bipartite entanglement transfer with the aid of electric field. — •Zhirayr Adamyan1,2, Vadim Ohanyan1,2, Ani Chobanyan1, Hamid Arian Zad3, Jozef Strecka3, Azadeh Ghannadan4, and Saeed Haddadi4,5 — 1Laboratory of Theoretical Physics, Yerevan State University, 1 Alex Manoogian, 0025 Yerevan, Armenia — 2CANDLE, Synchrotron Research Institute, 31 Acharyan Str., 0040 Yerevan, Armenia — 3Department of Theoretical Physics and Astro- physics, Faculty of Science, P. J. Safarik University, Park Angelinum 9, 041 54 Kosice, Slovak Republic — 4Saeeds Quantum Information Group, P.O. Box 19395-0560, Tehran, Iran — 5Faculty of Physics, Semnan University, P.O. Box 35195-363, Semnan, Iran
The unique properties exhibited by single molecular magnets (SMMs) have led to their integration into hybrid devices, emphasizing their quantum nature. We examine models of 1/2-spin molecular magnets arranged in a convex polygon configuration, utilizing a Katsura-Nagaosa-Balatsky (KNB) mechanism to couple the spin degrees of freedom to an external electric field. This KNB mechanism enables extensive control over quantum entanglement through both the magnitude and direction of the electric field. By employing a rotating configuration of the KNB-coupled electric field, where the field's magnitude remains constant while its direction changes, we demonstrate the controllable transfer of bipartite entanglement between different pairs of spins in the model.
Keywords: entanglement; KNB mechanism; entanglement transfer