Towards modular and reconfigurable superconducting quantum circuits
Abstract: Superconducting circuits are a leading platform for building quantum computers due in part to the strong interactions between neighboring circuits and their fast gate times. However, these constant strong interactions lead to “crosstalk”, where elements fabricated in close proximity to each other will experience strong, unwanted interactions that can limit performance. A way to mitigate this is to place circuits that have a desired strong coupling with each other in separate 'modules' and then connect them together through a communication channel to form a network. While this suppresses undesired crosstalk, the issue now is that the fidelity of information sent between modules is limited by the quality of the communication channel it must travel through. We are working on a connection scheme in which we couple qubits on-demand to microwave photons, and that will be able to tolerate photon loss in the communication channel through off-resonant Raman passages. In this talk I will present the blueprint for our work as well as our experimental progress.
This talk is intended for local QIS researchers at the University of Illinois; please do not share it more broadly.
