Tunable coupler for superconducting Xmon qubits: Perturbative nonlinear model

MR Geller, E Donate, Y Chen, MT Fang, N Leung… - Physical Review A, 2015 - APS
We study a recently demonstrated design for a high-performance tunable coupler suitable
for superconducting Xmon and planar transmon qubits [Y. Chen, Phys. Rev. Lett. 113 …

Universal quantum simulation with prethreshold superconducting qubits: Single-excitation subspace method

MR Geller, JM Martinis, AT Sornborger, PC Stancil… - Physical Review A, 2015 - APS
Current quantum computing architectures lack the size and fidelity required for universal
fault-tolerant operation, limiting the practical implementation of key quantum algorithms to all …