三次相位门与囚禁离子振子
Cubic Phase Gate with a Trapped Ion Oscillator
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中文总结 AI 辅助
本文实验演示了一种通过数值优化态相关力脉冲来近似三次相位门的协议，适用于真空和低α相干态输入，并验证了其性能，可扩展至其他非线性幺正操作。
中文摘要 AI 辅助
囚禁离子的运动模式是连续变量（CV）量子计算与模拟的有前景的候选者。然而，要实现CV量子计算的通用门集，需要非简谐非线性幺正操作。在此，我们实验演示了一种能够近似三次相位门的协议。通过数值优化一组态相关力脉冲的相位角和振幅，我们演示了针对真空态和低α相干态输入的三次相位门，并验证了其性能。我们的协议还可扩展以近似其他非线性幺正操作。
英文摘要
The motional modes of trapped ions are promising candidates for continuous-variable (CV) quantum computation and simulation. However, to achieve a universal gate set for CV quantum computation, anharmonic nonlinear unitaries are required. Here, we experimentally demonstrate a protocol that allows us to approximate the cubic phase gate. By numerically optimizing the phase angles and amplitudes of a set of state-dependent force pulses, we demonstrate the cubic phase gate for both vacuum and low-$α$ coherent state inputs and verify its performance. Our protocol can also be extended to approximate other nonlinear unitaries.
发表机构
- Centre for Quantum Technologies, National University of Singapore（新加坡国立大学量子技术中心）
- Department of Physics, National University of Singapore（新加坡国立大学物理系）
机构由 AI 辅助整理，请以论文原文为准。
