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Description
  • We address the question of the role of quantum correlations beyond entanglement in the context of quantum magnetometry. We study the evolution of the rescaled variant of the geometric quantum discord of two electron-spin qubits interacting with an environment of nuclear spins via the hyperfine interaction. We have found that quantum correlations display a strong magnetic-field sensitivity which can be utilized for decoherence-driven measurements of the external magnetic field. The discord-based measurement is sensitive to a wider range of magnetic-field values than the entanglement-based measurement, including very small fields which are inaccessible via entanglement. Copyright (C) EPLA, 2014
  • We address the question of the role of quantum correlations beyond entanglement in the context of quantum magnetometry. We study the evolution of the rescaled variant of the geometric quantum discord of two electron-spin qubits interacting with an environment of nuclear spins via the hyperfine interaction. We have found that quantum correlations display a strong magnetic-field sensitivity which can be utilized for decoherence-driven measurements of the external magnetic field. The discord-based measurement is sensitive to a wider range of magnetic-field values than the entanglement-based measurement, including very small fields which are inaccessible via entanglement. Copyright (C) EPLA, 2014 (en)
Title
  • The decay of quantum correlations between quantum dot spin qubits and the characteristics of its magnetic-field dependence
  • The decay of quantum correlations between quantum dot spin qubits and the characteristics of its magnetic-field dependence (en)
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  • The decay of quantum correlations between quantum dot spin qubits and the characteristics of its magnetic-field dependence
  • The decay of quantum correlations between quantum dot spin qubits and the characteristics of its magnetic-field dependence (en)
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  • RIV/00216208:11320/14:10283181!RIV15-MSM-11320___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • I
http://linked.open...iv/cisloPeriodika
  • 6
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
  • Roszak, Katarzyna
http://linked.open.../riv/druhVysledku
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  • 9918
http://linked.open...ai/riv/idVysledku
  • RIV/00216208:11320/14:10283181
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  • discord; entanglement (en)
http://linked.open.../riv/klicoveSlovo
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  • FR - Francouzská republika
http://linked.open...ontrolniKodProRIV
  • [1127559F5DCA]
http://linked.open...i/riv/nazevZdroje
  • Europhysics Letters
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
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http://linked.open...UplatneniVysledku
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  • 107
http://linked.open...iv/tvurceVysledku
  • Roszak, Katarzyna
  • Horodecki, P.
  • Mazurek, P.
http://linked.open...ain/vavai/riv/wos
  • 000343125400021
issn
  • 0295-5075
number of pages
http://bibframe.org/vocab/doi
  • 10.1209/0295-5075/107/67004
http://localhost/t...ganizacniJednotka
  • 11320
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