High-Fidelity, HPC-driven Physical Modeling of EM Wave / Qubit Interactions

We present the latest advancements in full physical modeling of electromagnetic (EM) wave behaviors in quantum chips. Understanding how EM waves interact with quantum elements is important to ensure the design captures proper coupling and resonance behavior while minimizing crosstalk, and is useful for design optimization. Recently, we used the full Perlmutter GPU supercomputer to perform unprecedented (~7000 GPU) simulations of 10mm-scale quantum chips at micrometer resolution to model an entire circuit structure. We also present our latest efforts in design optimization and experimental comparisons for smaller quantum chips. Using the GPU-accelerated, exascale time-domain solver, ARTEMIS, we demonstrate our use of classical modeling techniques to model signal interactions and ability to incorporate nonlinear effects due to qubits that affect circuit performance. This research enhances our understanding of EM wave dynamics in quantum devices and lays the groundwork for future innovations in quantum chip design.