Topological Orders with Spins and Fermions [[electronic resource] ] : Quantum Phases and Computation / / by Laura Ortiz Martín

• Autore: Martín Laura Ortiz
• Pubblicazione: Cham : , : Springer International Publishing : , : Imprint : Springer, , 2019
• Edizione: 1st ed. 2019.
• Descrizione fisica: 1 online resource (176 pages)
• Disciplina: 006.3843
• Soggetto topico: Solid state physics; Superconductivity; Superconductors; Quantum computers; Spintronics; Solid State Physics; Strongly Correlated Systems, Superconductivity; Quantum Information Technology, Spintronics; Quantum Computing
• Note generali: "Doctoral Thesis accepted by the Universidad Complutense de Madrid, Madrid, Spain"--Title page.
• Nota di contenuto: Introduction -- Topology in Condensed Matter -- Topology in Quantum Information -- Spin systems -- The bilayer double semion model -- Double semion model as a quantum memory -- Fermionic systems -- Topological insulators -- Topological superconductors -- Conclusions and appendices.
• Sommario/riassunto: This thesis deals with topological orders from two different perspectives: from a condensed matter point of view, where topological orders are considered as breakthrough phases of matter; and from the emerging realm of quantum computation, where topological quantum codes are considered the most appealing platform against decoherence. The thesis reports remarkable studies from both sides. It thoroughly investigates a topological order called the double semion model, a counterpart of the Kitaev model but exhibiting richer quasiparticles as excitations. A new model for symmetry enriched topological order is constructed, which adds an onsite global symmetry to the double semion model. Using this topological phase, a new example of topological code is developed, the semion code, which is non-CSS, additive, non-Pauli and within the stabiliser formalism. Furthermore, the thesis analyses the Rashba spin-orbit coupling within topological insulators, turning the helical edge states into generic edges modes with potential application in spinstronics. New types of topological superconductors are proposed and the novel properties of the correspondingly created Majorana fermions are investigated. These Majorana fermions have inherent properties enabling braiding and the performance of logical gates as fundamental blocks for a universsal quantum computator. .
• Titolo autorizzato: Topological Orders with Spins and Fermions
• ISBN: 3-030-23649-8
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Lingua di pubblicazione: Inglese
• Record Nr.: 9910337880503321
• Lo trovi qui: Univ. Federico II
• Serie: Springer Theses, Recognizing Outstanding Ph.D. Research, . 2190-5053