| Spin-orbit qubits of rare-earth-metal ions in axially symmetric crystal fields. | |
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MedLine Citation:
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PMID: 20366115 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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Contrary to the well-known spin qubits, rare-earth-metal qubits are characterized by a strong influence of crystal field due to large spin-orbit coupling. At low temperature and in the presence of resonance microwaves, it is the magnetic moment of the crystal-field ground state which nutates (for several micros) and the Rabi frequency Omega(R) is anisotropic. Here, we present a study of the variations of Omega(R)(H(0)) with the magnitude and direction of the static magnetic field H(0) for the odd 167Er isotope in a single crystal CaWO(4):Er(3+). The hyperfine interactions split the Omega(R)(H(0)) curve into eight different curves which are fitted numerically and described analytically. These "spin-orbit qubits" should allow detailed studies of decoherence mechanisms which become relevant at high temperature and open new ways for qubit addressing using properly oriented magnetic fields. |
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Authors:
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S Bertaina; J H Shim; S Gambarelli; B Z Malkin; B Barbara |
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Publication Detail:
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Type: Journal Article Date: 2009-11-24 |
Journal Detail:
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Title: Physical review letters Volume: 103 ISSN: 1079-7114 ISO Abbreviation: Phys. Rev. Lett. Publication Date: 2009 Nov |
Date Detail:
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Created Date: 2010-04-06 Completed Date: 2010-06-18 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0401141 Medline TA: Phys Rev Lett Country: United States |
Other Details:
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Languages: eng Pagination: 226402 Citation Subset: - |
Affiliation:
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IM2NP, CNRS and Universit? Paul C?zanne, Avenue Escadrille Normandie Niemen-Case 142-13397 Marseille Cedex 20, France. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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