报告题目（Title）：Improving trapped ion quantum information processing with parametric amplification
报 告 人（Speaker）：葛文超博士 (Texas A&M University)
报告时间（Time）：2019年1月11日（周五）14:00
报告地点（Place）：校本部G309
邀请人（inviter）：曾小东
报告摘要（Abstract）：
Trapped ions offer a pristine platform for quantum simulation of spin models, but improving their coherence remains a crucial challenge. In this talk, I will present a strategy to enhance the interaction strengths in trapped-ion systems via parametric amplification of the ion's motion, thereby suppressing the relative importance of decoherence. We illustrate the power of this approach by showing how it can enhance collective spin states useful for quantum metrology, and how it can improve the speed and fidelity of two-qubit gates in multi-ion systems. Our results are also directly relevant to numerous other platforms in which spin interactions are mediated by bosons.
