2016/09/30 by James R. Wootton, James R Wootton · 35 citations
Computer Science · Physics and Astronomy · #Code (set theory) #Computation #IBM #Process (computing) #Quantum #Quantum Computing Algorithms and Architecture #Quantum and electron transport phenomena #Quantum computer #Qubit #Topological Materials and Phenomena #quant-ph
paper · pdf · doi:10.1088/2058-9565/aa5c73
published in Quantum Science and Technology 2(1), 015006 (IOP Publishing)
openalex created_date 2017/02/03 · arxiv created 2017/02/27 · openalex publication_date 2017/03/01 · arxiv updated 2017/05/12 · openalex updated_date 2026/08/05
Abstract Currently, the mainstream approach to quantum computing is through surface codes. One way to store and manipulate quantum information with these to create defects in the codes which can be moved and used as if they were particles. Specifically, they simulate the behaviour of exotic particles known as Majoranas, which are a kind of non-Abelian anyon. By exchanging these particles, important gates for quantum computation can be implemented. Here we investigate the simplest possible exchange operation for two surface code Majoranas. This is found to act non-trivially on only five qubits. The system is then truncated to these five qubits, so that the exchange process can be run on the IBM 5Q processor. The results demonstrate the expected effect of the exchange. This paper has been written in a style that should hopefully be accessible to both professional and amateur scientists.