标题： 通过电路量子电动力学辅助的微波光子通用量子门 显示英文标题

标题： Universal quantum gates on microwave photons assisted by circuit quantum electrodynamics

摘要： 基于具有多个超导谐振器耦合到一个三级超导量子三态的微波光子量子处理器，我们通过光子数依赖的频率偏移效应和量子三态与谐振器之间的共振操作，构建了微波光子谐振器高维量子比特上的受控相位（c-phase）和受控受控相位（cc-phase）门。 这一独特特性使我们在更短的操作时间内，为在谐振器高维量子比特上实现更高保真度的量子逻辑门提供了一种有用的方法，与其他方法相比更具优势。 我们的c-phase门保真度可在92 ns内达到99.51%。 我们在此首次构建的三个谐振器高维量子比特的cc-phase门保真度可在124.64 ns内达到92.92%。 显示英文摘要

摘要： Based on a microwave-photon quantum processor with multiple superconducting resonators coupled to one three-level superconducting qutrit, we construct the controlled-phase (c-phase) and controlled-controlled-phase (cc-phase) gates on microwave-photon-resonator qudits, by combination of the photon-number-dependent frequency-shift effect and the resonant operation between the qutrit and a resonator. This distinct feature provides us a useful way for achieving higher fidelity quantum logic gates on resonator qudits in a shorter operation time, compared with others. The fidelity of our c-phase gate can reach 99.51% within 92 ns. The fidelity of our cc-phase gate on three resonator qudits constructed here in the first time, can reach 92.92% within 124.64 ns.