Two-dimensional ion crystals in radio-frequency traps for quantum simulation
Two-dimensional ion crystals in radio-frequency traps for quantum simulation
复制标题
用于量子模拟的射频陷阱中的二维离子晶体
DOI：
10.1103/physreva.94.032320
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发表时间：
2016
影响因子：
2.9
通讯作者：
P. Richerme
中科院分区：
文献类型：
--
作者：
P. Richerme
求解全量子多体自旋问题的计算困难是理解强关联量子物质行为的一个重要障碍。实验离子阱量子模拟是研究这些晶格自旋模型的一种很有前途的方法，但迄今为止仅限于一维系统。这项工作认为，这样的量子模拟技术是可扩展的2D离子晶体限制在射频（RF）陷阱。使用适当选择的参数，由于射频场的驱动离子运动可以变得很小，并且不会限制可以通过实验编码的量子自旋模型的类型。射频驱动的运动计算适度减少2D晶体的稳定区域，必须考虑设计时的2D陷阱。该系统将可扩展到100多个量子粒子，远远超出了经典的棘手领域，同时保持传统的离子阱强度的单个离子控制，长量子相干时间和现场分辨投影自旋测量。
The computational difficulty of solving fully quantum many-body spin problems is a significant obstacle to understanding the behavior of strongly correlated quantum matter. Experimental ion-trap quantum simulation is a promising approach for studying these lattice spin models, but has so far been limited to one-dimensional systems. This work argues that such quantum simulation techniques are extendable to a 2D ion crystal confined in a radiofrequency (rf) trap. Using appropriately chosen parameters, driven ion motion due to the rf fields can be made small and will not limit the types of quantum spin models that can be experimentally encoded. The rf-driven motion is calculated to modestly reduce the stability region of a 2D crystal and must be considered when designing the 2D trap. The system will be scalable to 100+ quantum particles, far beyond the realm of classical intractability, while maintaining the traditional ion-trap strengths of individual-ion control, long quantum coherence times, and site-resolved projective spin measurements.