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Amniat-Talab M, Rangani Jahromi H, Abbasi L. distance Studying the geometric phase for a two-qubit model in terms of . ICOP & ICPET _ INPC _ ICOFS 2015; 21 :717-720
URL: http://opsi.ir/article-1-721-en.html
URL: http://opsi.ir/article-1-721-en.html
Abstract: (3224 Views)
We study the variation of geometric phase with distance for a two spin-1/2 system with Dzyaloshinskii-Moriya (DM) interaction, while one of the spins is driven by a time-varing rotating magnetic field and the other one is coupled with a static magnetic field. It is shown that when we consider the spin-spin coupling coefficient in the form of the Calogero-Moser types, the geometric phase can increase with the distance and reach a peak then it maybe decreases for a short distance and will be unchanged for very long distances. Moreover, increasing the amount of magnetic field causes the decrease of geometric phase in terms of the distance.
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