We propose a scheme to generate two-axis countertwisting squeezed spin states from a one-axis twisting Hamiltonian via Uhrig dynamical decoupling. The proposed scheme significantly reduces the number of control pulses or requires shorter evolution time compared to previous proposals. The minimum number of applied pulses changes relative to the spin number almost linearly. The proposed scheme significantly relieves the experimental demand on the applied pulses or the evolution time, and we expect it would be within the reach of current spin squeezing experiment.

中文翻译：

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通过Uhrig动力学解耦生成两轴反扭曲挤压自旋状态

我们提出了一种通过Uhrig动力学解耦从单轴扭曲哈密顿量生成两轴反扭曲挤压自旋状态的方案。与先前的提议相比，该提议的方案显着减少了控制脉冲的数量或需要更短的演化时间。最小施加脉冲数相对于自旋数几乎呈线性变化。所提出的方案极大地减轻了对施加脉冲或演化时间的实验需求，我们希望这将在当前的自旋挤压实验的范围之内。