论文标题
通过Dynyal Declpling用于GKP量子计算的旋转和汉密尔顿工程
Twirling and Hamiltonian Engineering via Dynamical Decoupling for GKP Quantum Computing
论文作者
论文摘要
我引入了一个受约束的近似旋转操作的能量，该操作可用于将GKP量子误差校正中的有效逻辑通道对角化，项目状态在GKP代码空间中，并构建具有快速位移脉冲的动态脱钩序列，以使GKP稳定器Hamiltonians从合适的sudstrate-Hamiltonian中提炼。后者由与约瑟夫森交界处平行的LC振荡器一起给出。该平台原则上允许通过动态生成“被动”稳定的GKP量子量，无需显式稳定器测量或状态分析即可进行受保护的GKP量子计算。
I introduce an energy constrained approximate twirling operation that can be used to diagonalize effective logical channels in GKP quantum error correction, project states into the GKP code space and construct a dynamical decoupling sequence with fast displacements pulses to distill the GKP stabilizer Hamiltonians from a suitable substrate-Hamiltonian. The latter is given by an LC-oscillator comprising a superinductance in parallel to a Josephson Junction. This platform in principle allows for protected GKP quantum computing without explicit stabilizer measurements or state-reset by dynamically generating a `passively' stabilized GKP qubit.
