Strong spin-oscillation of small spin-1 condensates caused by an inclined weak magnetic field
He, Yanzhang · Chen, Zhifeng · Li, Zhibing · Bao, Chengguang
Original · EN
When a magnetic field is applied along a direction deviated from the quantization Z-axis, the conservation of total magnetization holds no more. In this case the inclined field can cause a strong spin-evolution via the linear Zeeman term even the field is as weak as a percentage of mG. An approach beyond the mean field theory is proposed to study the evolution of small ⁸⁷Rb condensates under the weak inclined fields. The time-dependent populations of spin-components are given in analytical forms. The evolution is found to be highly sensitive to the magnitude and direction of the field.
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