Speaker Institution: Department of Physics, University of California, Santa Barbara, California 93106 USA
Title: Scalable Designs for Majorana-Based Quantum Computing
Abstract: Storing quantum information non-locally in the joint state of pairs of Majorana zero modes (MZMs) is a promising approach towards fault tolerant quantum computing. In this talk, I will discuss designs for scalable Majorana-based quantum computing architectures, presented in PRB 95 (2017) arXiv:1610.05289, that are both promising for large scale quantum computing and testable in near-term devices. I will first explain the topological protection and operation of these qubits in the limit of no charge noise and negligible MZM hybridization. I will then discuss the effects of charge noise in the context of a near-term device, the so-called "loop qubit." Finally, I will consider how finite MZM hybridization affects the coherence times of the topological qubit.