An analytical model has been developed for the generation of a superstrong quasi-stationary magnetic field (up to several GG) in the focal waist of an ultra-intense short circularly polarised laser pulse interacting with a gas-cluster target. The rotation of relativistic electrons around the ionised core of the cluster has been shown to produce a magnetic moment and a quasi-stationary magnetic field. With a large number of nanoclusters, the magnetic field occupies the entire focal volume with a characteristic spatial scale of tens of micrometers and exists during the cluster expansion time (i.e., several picoseconds).

中文翻译：

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激光簇等离子体中超强准定常磁场的产生

已经开发了一种分析模型，用于在与气团目标相互作用的超强短圆偏振激光脉冲的焦腰中产生超强准静止磁场（高达几个 GG）。已证明相对论电子围绕星团电离核心的旋转会产生磁矩和准静止磁场。对于大量的纳米团簇，磁场占据了整个焦点体积，具有数十微米的特征空间尺度，并且存在于团簇扩展时间（即几个皮秒）期间。