Abstract: (3201 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.
Type of Study:
Research |
Subject:
Special