Macroscopic many-qubit interactions in superconducting flux qubits

Cho, Sam Young and Kim, Mun Dae (2008) Macroscopic many-qubit interactions in superconducting flux qubits. Physical Review B, 77 21: Article Number: 212506. doi:10.1103/PhysRevB.77.212506

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Author Cho, Sam Young
Kim, Mun Dae
Title Macroscopic many-qubit interactions in superconducting flux qubits
Journal name Physical Review B   Check publisher's open access policy
ISSN 1098-0121
Publication date 2008-06-19
Sub-type Article (original research)
DOI 10.1103/PhysRevB.77.212506
Open Access Status File (Publisher version)
Volume 77
Issue 21
Start page Article Number: 212506
Total pages 4
Editor P. D. Adams
Place of publication College Park, Maryland, USA
Publisher American Physical Society
Language eng
Subject C1
970102 Expanding Knowledge in the Physical Sciences
020499 Condensed Matter Physics not elsewhere classified
Abstract Superconducting flux qubits are considered to investigate macroscopic many-qubit interactions. Many-qubit states based on current states can be manipulated through the current-phase relation in each superconducting loop. For flux qubit systems comprised of N-qubit loops, a general expression of low-energy Hamiltonian is presented in terms of low-energy levels of qubits and macroscopic quantum tunnelings between the many-qubit states. Many-qubit interactions classified by Ising-type or tunnel exchange interactions can be observable experimentally. Flux qubit systems can provide various artificial-spin systems to study many-body systems that cannot be found naturally.
Q-Index Code C1
Q-Index Status Confirmed Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2009 Higher Education Research Data Collection
School of Mathematics and Physics
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Citation counts: TR Web of Science Citation Count  Cited 2 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 3 times in Scopus Article | Citations
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Created: Fri, 20 Mar 2009, 21:47:15 EST by Jo Hughes on behalf of School of Mathematics & Physics