A new paper has been published by Santiago Vallés-Sanclemente et al. on “Optimizing the frequency positioning of tunable couplers in a circuit QED processor to mitigate spectator effects on quantum operations”. Make sure attend the APS March Meeting talk by Santiago on Tuesday 18 March 3pm – 3:12pm.

Study of possible CZ gates facilitated by a tunable coupler. Figures (a) and (b) depict the available parameter space. The black regions are suitable for a CZ gate and the four colored data points show configurations that are studied in detail in Figures (c) to (f). These show performance metrics of the operation indicating that the red configuration is suited best for a CZ gate.
A new paper by Santiago Vallés-Sanclemente et al. on “Optimizing the frequency positioning of tunable couplers in a circuit QED processor to mitigate spectator effects on quantum operations” has been made available through arXiv.org.
Make sure to attend the talk by Santiago Vallés-Sanclemente on Tuesday 18 March at the APS March Meeting. The talk is part of the Circuit Optimization and Compilation session 3pm – 3:12pm in room 256B (level 2). Discover how high-fidelity controlled-Z gates and improved parity-checks pave the way for robust error correction in superconducting quantum processors.
Results were obtained by the DiCarlo Lab at QuTech with direct contributions from OrangeQS on a device provided by QuantWare. The collaboration is supported by the DiagnostiQ and Hectoqubit/2 projects. Experiments were performed using the open-source framework Quantify, together with Superconducting Qubit Tools. SCQT is a library of test protocols which is part of the OrangeQS FLEX product line of building blocks for quantum R&D labs.
The DiagnostiQ project aims to accelerate innovation in quantum chip development by turning key scientific results into a commercially ready product for faster diagnostics of superconducting quantum chips. The DiCarlo lab at QuTech designs Hamiltonian parameters for chips as well as cutting-edge characterization routines, specifically for next-generation (tunable-coupler based) superconducting quantum devices. At OrangeQS, these research-level routines are converted into robust protocols that are applicable to a wide range of superconducting quantum chips and available as part of our OrangeQS MAX and OrangeQS FLEX product lines.
The HectoQubit/2 project takes the critical first steps on the path towards the development of a 100-qubit quantum computer in Delft as planned within the European Flagship consortium OpenSuperQPlus, where TU Delft is one of the three demonstrator sites. OrangeQS supports the effort with a framework to automate and maintain calibration. This contributes to further increasing the capabilities and performance of our automated testing software, an important component of our high-throughput test equipment which we deliver to organizations that work on 100-qubit scale quantum chips.
