Manish K. Singh

Distributed quantum computing offers a path to scaling beyond the limits of single-chip processors by using either nonlocal teleported CNOT gates or classical circuit-cutting techniques. Circuit cutting is flexible but incurs exponential sampling and post-processing overhead, whereas remote gates avoid this cost but require high-fidelity Bell pairs generated over optical links. Using a physically motivated model of noisy microwave-to-optical transducers, we identify the noise regimes in which remote gates match or exceed the performance of gate cutting for distributed GHZ-state generation. These results establish concrete hardware targets for optical interconnects and support a hybrid approach that combines quantum links with circuit cutting in near-term modular architectures.