Hamiltonian-Based Modeling of Superconducting Circuits Using Keysight's Quantum Simulation Tools

Current superconducting qubit design flows rely on iterative and computationally intensive electromagnetic (EM) simulations to tune circuit parameters. In this talk, we introduce Hamiltonian Analysis, a tool within Keysight Quantum Circuit Simulation, which extracts circuit parameters directly from schematics and computes the Hamiltonian, energy spectra, potential landscapes, and wavefunctions. This approach enables rapid validation of circuit parameters prior to EM simulation, significantly reducing the number of simulations required. Hamiltonian Analysis supports a wide range of superconducting qubit types, including transmons, tunable transmons, fluxoniums, flux qubits, 0–π qubits, and cos(2φ) qubits.