Systematic Crosstalk Mitigation for Superconducting Qubits via FrequencyAware

Systematic Crosstalk Mitigation for Superconducting Qubits via Frequency-Aware Compilation QIP Theory & Systems Club SEP 8, 2020 https: //arxiv. org/abs/2008. 09503 [Y. Ding, P. Gokhale, F. Lin, R. Rines, T. Propson, and F. T. Chong]

CROSSTALK ERROR What is Crosstalk No Error Idle Error

CROSSTALK ERROR What is Crosstalk No Error Gate Error

CROSSTALK MITIGATION General Strategies • Device Connectivity Design • Qubit Frequency Tuning • Coupler Tuning

MITIGATION STRATEGIES Hardware-Software Co-Design Hardware Level Software Level • Circuit Compiling • Gate Scheduling • Qubit Mapping • Frequency Assignment (for tunable qubits)

SUPERCONDUCTING QUBITS A Systematic Approach to Crosstalk Mitigation

SUPERCONDUCTING QUBITS A Systematic Approach to Crosstalk Mitigation

CROSSTALK MITIGATION Heterogenous Gate Decomposition

CROSSTALK MITIGATION Graph Coloring Approach to Frequency Assignment Idle Frequencies Interaction Frequencies

CROSSTALK MITIGATION Graph Coloring Approach to Frequency Assignment Welsh-Powell algorithm Graph Coloring Crosstalk graph

CROSSTALK MITIGATION Color to Frequency: SAT Solver SMT Solver

CROSSTALK MITIGATION Putting it together Welsh-Powell algorithm SMT Solver Graph Coloring 2 Colors Crosstalk graph 3 Colors

SUPERCONDUCTING QUBITS Program Success Rate

SUPERCONDUCTING QUBITS Applicability to general connectivity

SUPERCONDUCTING QUBITS Capacitively Coupled Flux-Tunable Transmons i. SWAP Gate CZ Gate