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arXiv · 0903.2541

Strong spin-oscillation of small spin-1 condensates caused by an inclined weak magnetic field

Yanzhang He·Zhifeng Chen·Zhibing Li·Chengguang Bao
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Abstract

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 $^{87}$Rb 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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Yanzhang He, Zhifeng Chen, Zhibing Li, Chengguang Bao. 2009-03-14. Strong spin-oscillation of small spin-1 condensates caused by an inclined weak magnetic field. https://doi.org/10.1103/physreva.80.023620

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