Quantum spin chains and Majorana states in arrays of coupled qubits

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dc.creatorLevitov, L. S.
dc.creatorOrlando, T. P.
dc.creatorMajer, J. B.
dc.creatorMooij, J. E.
dc.date2001-08-17
dc.date2001-08-19
dc.date.accessioned2026-07-07T02:42:26Z
dc.date.available2026-07-07T02:42:26Z
dc.descriptionSeveral designs of inter-qubit coupling are considered. It is shown that by a combination of Josephson and capacitive coupling one can realize qubit interactions of variable spin content. Qubit arrays are discussed as models of quantum spin chains. In particular, a qubit model of the 1D quantum Ising spin chain is proposed. A realization of unpaired Majorana fermion states in this system is considered. It is shown that Majorana states are represented by spin flip excitations localized on the chain ends. Using unpaired Majorana states in qubit chains for decoherence protected quantum computing is discussed.
dc.description7 pages, 7 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0108266
dc.identifierhttp://arxiv.org/abs/cond-mat/0108266
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/18143
dc.subjectMesoscale and Nanoscale Physics
dc.subjectDisordered Systems and Neural Networks
dc.subjectSuperconductivity
dc.titleQuantum spin chains and Majorana states in arrays of coupled qubits
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