Entanglement dynamics in superconducting qubits affected by local bistable impurities (Articolo in rivista)

Type
Label
  • Entanglement dynamics in superconducting qubits affected by local bistable impurities (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1088/0031-8949/2012/T147/014019 (literal)
Alternative label
  • Lo Franco, R.; D'Arrigo, A.; Falci, G.; Compagno, G.; Paladino, E. (2012)
    Entanglement dynamics in superconducting qubits affected by local bistable impurities
    in Physica scripta (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Lo Franco, R.; D'Arrigo, A.; Falci, G.; Compagno, G.; Paladino, E. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • T147 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 4 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • University of Catania; University of Catania; CNR IMM Matis; University of Palermo - Italy; University of Palermo - Italy (literal)
Titolo
  • Entanglement dynamics in superconducting qubits affected by local bistable impurities (literal)
Abstract
  • We study the entanglement dynamics for two independent superconducting qubits, each affected by a bistable impurity generating random telegraph noise (RTN) at pure dephasing. The relevant parameter is the ratio g between the qubit-RTN coupling strength and the RTN switching rate, which captures the physics of the crossover between Markovian and non-Markovian features of the dynamics. For identical qubit-RTN subsystems, a threshold value g(th) of the crossover parameter separates exponential decay and the onset of revivals; different qualitative behaviors also show up by changing the initial conditions of the RTN. We also show that, for different qubit-RTN subsystems, when both qubits are very strongly coupled to the RTN, an increase of entanglement revival amplitude may occur during the dynamics. (literal)
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