Quantum-state transfer in imperfect artificial spin networks

Mauro Paternostro, Massimo Palma, Myungshik Kim, G. Falci

Research output: Contribution to journalArticle

55 Citations (Scopus)

Abstract

High-fidelity quantum computation and quantum state transfer are possible in short spin chains. We exploit a system based on a dispersive qubit-boson interaction to mimic XY coupling. In this model, the usually assumed nearest-neighbor coupling is no longer valid: all the qubits are mutually coupled. We analyze the performances of our model for quantum state transfer showing how preengineered coupling rates allow for nearly optimal state transfer. We address a setup of superconducting qubits coupled to a microstrip cavity in which our analysis may be applied.
Original languageEnglish
Article number042311
Pages (from-to)042311-042312
Number of pages2
JournalPhysical Review A
Volume71
Issue number4
DOIs
Publication statusPublished - Apr 2005

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy(all)

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