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Scalable Designs for Majorana-Based Quantum Computing

July 19, 2017 - 11:00am
Speaker: 
Christina Knapp
Institution: 
Department of Physics, University of California, Santa Barbara

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.  

2205 Toll Building