Prof. Roth has been named as one of the recipients of the Young Scientist Award at the 2023 URSI International Symposium on Electromagnetic Theory! This conference will be held in Vancouver from May 23 - 26, 2023. Prof. Roth was selected for this award based on his paper that will be presented at the conference titled "Hybrid 1D Maxwell-Schrödinger modeling of dispersive regime effects of a transmon qubit". 

Paper Abstract: Transmon qubits integrated into microwave circuitry are a leading quantum computing architecture. However, significant engineering improvements are still needed. General-purpose numerical methods are becoming of interest to tackle these challenges, but existing fully-quantum methods are highly inefficient. In this work, we formulate a semiclassical Maxwell-Schrödinger model as an alternative approach to efficiently analyze the interactions of transmons capacitively coupled to transmission line networks. Additionally, we present a suitable discretization and time marching strategy. We validate our approach by comparing it to theoretical models relevant to the dispersive operating regime used in most hardware implementations. Our results show that our method can accurately predict effects related to transmon state measurements that are typically derived using fully-quantum models. In the future, our approach can be used to rapidly explore broader design spaces to improve the speed and fidelity of qubit state measurements, which is a key obstacle toward achieving fault-tolerant quantum computation.