Professor at the University of Glasgow
Improving coherence in superconducting qubits
The seminar aims to address a crucial challenge in the realm of quantum computing: improving coherence in superconducting qubits by systematically analyzing materials-induced losses in e.g. transmon qubits. Students will calculate the energy participation ratio (EPR) to understand dissipation mechanisms, examine qubit capacitance, and study dielectric loss tangents to quantify energy loss in the dielectric material, among other channels of loss (e.g. radiative, quasiparticles). Through critical analysis of key review papers, students will gain insights into state-of-the-art techniques and challenges in qubit design and their materials. This training aims to foster both understanding and innovation, potentially leading to strategies for mitigating materials-induced losses and advancing the field of quantum computing.