{ "id": "1909.10521", "version": "v1", "published": "2019-09-23T18:00:00.000Z", "updated": "2019-09-23T18:00:00.000Z", "title": "Number conserving analysis of measurement-based braiding with Majorana zero modes", "authors": [ "Christina Knapp", "Jukka I. Väyrynen", "Roman M. Lutchyn" ], "comment": "8 pages+appendices, 1 figure, comments welcome", "categories": [ "cond-mat.mes-hall", "cond-mat.str-el", "quant-ph" ], "abstract": "Majorana-based quantum computation seeks to encode information non-locally in pairs of Majorana zero modes, thereby isolating qubit states from a local noisy environment. In addition to long coherence times, the attractiveness of Majorana-based quantum computing relies on achieving topologically protected Clifford gates from braiding operations. Recent works have conjectured that mean-field BCS calculations may fail to account for non-universal corrections to the Majorana braiding operations. Such errors would be detrimental to Majorana-based topological quantum computing schemes. In this work, we develop a particle-number conserving approach for measurement-based topological quantum computing and investigate the effect of quantum phase fluctuations. We demonstrate that braiding transformations are indeed topologically protected in charge-protected Majorana-based quantum computing schemes.", "revisions": [ { "version": "v1", "updated": "2019-09-23T18:00:00.000Z" } ], "analyses": { "keywords": [ "majorana zero modes", "number conserving analysis", "majorana-based quantum computing schemes", "topological quantum computing schemes", "topologically protected clifford gates" ], "note": { "typesetting": "TeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable" } } }