We describe a broadly applicable experimental proposal to search for theviolation of local Lorentz invariance (LLI) with atomic systems. The new schemeuses dynamic decoupling and can be implemented in current atomic clocksexperiments, both with single ions and arrays of neutral atoms. Moreover, thescheme can be performed on systems with no optical transitions, and thereforeit is also applicable to highly charged ions which exhibit particularly highsensitivity to Lorentz invariance violation. We show the results of anexperiment measuring the expected signal of this proposal using a two-ioncrystal of $^{88}$Sr$^+$ ions. We also carry out a systematic study of thesensitivity of highly charged ions to LLI to identify the best candidates forthe LLI tests.
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机译：我们描述了一个广泛适用的实验方案，以寻求对原子系统违反局部洛伦兹不变性（LLI）的要求。新方案使用动态去耦，并且可以在当前的原子钟实验中实现，包括单离子和中性原子阵列。而且，该方案可以在没有光学跃迁的系统上进行，因此也可以应用于对洛伦兹不变性违规表现出特别高灵敏度的高电荷离子。我们显示了使用$ ^ {88} $ Sr $ ^ + $离子的两离子晶体测量该建议的预期信号的实验结果。我们还对高电荷离子对LLI的敏感性进行了系统研究，以找出进行LLI测试的最佳人选。
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