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Dynamical Spin Squeezing via Higher Order Trotter-Suzuki Approximation

Here we provide a scheme of transforming the one-axis twisting Hamiltonian into the two-axis twisting one based on high order Trotter-Suzuki Approximation. Compared with the paper [Y. C. Liu et al., Phys. Rev. Lett. 107, 013601 (2011)], our method can reduce the number of controlling cycles from $1000$ to $50$. Moreover, it is also spin number independent and takes shorter optimal evolution time contrast with the method in the work [C. Shen et al., Phys. Rev. A 87, 051801 (2013)]. The corresponding error analysis is also provided.

preprint2014arXivOpen access
Ji-Ying ZhangXiang-Fa ZhouGuang-Can GuoZheng-Wei Zhou
quant-ph
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Open access4 authors1 topic
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Ji-Ying ZhangXiang-Fa ZhouGuang-Can GuoZheng-Wei Zhou

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