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ANNA NAPOLI

On the validity of non-Markovian master equation approaches for the entanglement dynamics of two-qubit systems

  • Autori: Ferraro, E; Scala, M; Migliore, R; Napoli, A
  • Anno di pubblicazione: 2010
  • Tipologia: Articolo in rivista (Articolo in rivista)
  • Parole Chiave: Entanglement, Open quantum systems, Non-Markovian master equations
  • OA Link: http://hdl.handle.net/10447/53715

Abstract

In the framework of the dissipative dynamics of coupled qubits interacting with independent reservoirs, a comparison between non-Markovian master equation techniques and an exact solution is presented here. We study various regimes in order to find the limits of validity of the Nakajima–Zwanzig and the time-convolutionless master equations in the description of the entanglement dynamics. A comparison between the performances of the concurrence and the negativity as entanglement measures for the system under study is also presented.