Creation of two-dimensional Coulomb crystals of ions in oblate Paul traps for quantum simulations
Creation of two-dimensional Coulomb crystals of ions in oblate Paul traps for quantum simulations
复制标题
在扁圆保罗陷阱中创建离子的二维库仑晶体用于量子模拟
DOI：
10.1140/epjqt14
复制
发表时间：
2014
影响因子：
5.3
通讯作者：
J. Freericks
中科院分区：
文献类型：
--
作者：
B. Yoshimura;M. Stork;D. Dadic;W. Campbell;J. Freericks
我们发展了一个理论来描述一个被困离子量子模拟器的平衡离子位置和声子模式，该模拟器在一个扁圆保罗阱中产生二维库仑晶体在三角形晶格中。通过将离子的内部态与沿对称轴传播的激光束耦合，我们研究了通过轴向声子介导的对离子微运动不太敏感的有效的伊辛自旋-自旋相互作用。我们发现轴向模式的频率允许与逆幂律自旋-自旋耦合的伊辛相互作用的编程，可以从均匀调谐到直流电压。这样的陷阱可以为中等大小系统的量子模拟提供有趣的新几何构型，包括三角形晶格上的受挫磁或离子隧道的Aharonov-Bohm效应。该陷阱还包含循环周围的周期性边界条件，可用于检查时间晶体。
We develop the theory to describe the equilibrium ion positions and phonon modes for a trapped ion quantum simulator in an oblate Paul trap that creates two-dimensional Coulomb crystals in a triangular lattice. By coupling the internal states of the ions to laser beams propagating along the symmetry axis, we study the effective Ising spin-spin interactions that are mediated via the axial phonons and are less sensitive to ion micromotion. We find that the axial mode frequencies permit the programming of Ising interactions with inverse power law spin-spin couplings that can be tuned from uniform to with DC voltages. Such a trap could allow for interesting new geometrical configurations for quantum simulations on moderately sized systems including frustrated magnetism on triangular lattices or Aharonov-Bohm effects on ion tunneling. The trap also incorporates periodic boundary conditions around loops which could be employed to examine time crystals.
影响因子：
8.6
作者：
Landa, H.;Retzker, A.;Reznik, B.
通讯作者：
Reznik, B.