Dynamic ZZ-Coupling Suppression for Resonator-Induced Phase Gates in a Multi-Cavity Architecture

In superconducting qubit systems, the resonator-induced phase (RIP) gate has emerged as a promising method for implementing high-fidelity entangling operations. However, static ZZ coupling mediated by virtual photons and drive-induced crosstalk with spectator qubits remain significant challenges to scalability and fault tolerance. Moreover, conventional single-resonator architecture provides limited flexibility for independent control of these complex interactions in multi-quit environments. We propose a dynamic coupling-suppression scheme employing a chain of three serially coupled cavities. This configuration can support three distinct normal modes, each exhibiting unique dispersive shifts with the qubits. By applying independent off-resonant drives to each mode, we engineer controllable dynamic ZZ interactions that combine linearly with the intrinsic static terms. Proper adjustment of drive amplitudes and frequencies enables the cancellation of unwanted couplings, eliminating residual static ZZ interactions in idle states and suppressing drive-induced crosstalk during gate operations. This approach can overcome key limitations of conventional RIP gates and establish a scalable framework for crosstalk mitigation in large-scale superconducting quantum processors.