Description:

Abstract: Cooling down to low temperatures reveals the quantum nature of macroscopic materials. This has implication for both advancing our fundamental understanding of quantum matter, but also has practical applications in quantum computing. I will start with my talk with an overview of the work I did during my PhD on studying Helium-3 as a model system for topological unconventional superfluids. I will then move towards discussing future experiments I plan to do through my appointment at Northwestern University and the newly established Quantum lab. I will discuss how we can study the mechanisms of decoherence in superconducting qubits through microwave resonators and relate that the physics of two-level-systems in amorphous materials. I will propose experiments that can probe the photon and phonon interaction with two-level-systems interactions in the various materials comprising typical superconducting circuits for quantum computing that can hopefully allow us to build better understanding of the nature of two-level-systems present in these materials.

Speaker: Nikolay Zhelev, Northwestern University