Impact of Parallel Gating on Gate Fidelities in Linear, Square, and Star Arrays of Noisy Flip-Flop Qubits

Simulation study of parallel one- and two-qubit gates in four-qubit flip-flop arrays under realistic $1/ f$ electric-field noise.

Key Results

Compared linear, square, and star layouts for parallel operations.
Found that simultaneous two-qubit gates are substantially more vulnerable to spectator and geometry effects than one-qubit operations.
Reported an average modeled $i SWAP$ infidelity increase from roughly 0.02 for one operation to 0.2 for two parallel operations in the studied conditions.