The reduced dynamics of two interacting qubits coupled to two independent bosonic baths is investigated. The one-excitation dynamics is derived and compared with that based on the resolution of appropriate non-Markovian master equations. The Nakajima-Zwanzig and the time-convolutionless projection operator techniques are exploited to provide a description of the non-Markovian features of the dynamics of the two-qubit system. The validity of such approximate methods and their range of validity in correspondence to different choices of the parameters describing the system are brought to light.

Ferraro, E., Scala, M., Migliore, R., Napoli, A. (2009). Non-Markovian dissipative dynamics of two coupled qubits in independent reservoirs: Comparison between exact solutions and master-equation approaches. PHYSICAL REVIEW A, 80, 042112-1-042112-6 [10.1103/PhysRevA.80.042112].

Non-Markovian dissipative dynamics of two coupled qubits in independent reservoirs: Comparison between exact solutions and master-equation approaches

FERRARO, Elena;SCALA, Matteo;NAPOLI, Anna
2009-01-01

Abstract

The reduced dynamics of two interacting qubits coupled to two independent bosonic baths is investigated. The one-excitation dynamics is derived and compared with that based on the resolution of appropriate non-Markovian master equations. The Nakajima-Zwanzig and the time-convolutionless projection operator techniques are exploited to provide a description of the non-Markovian features of the dynamics of the two-qubit system. The validity of such approximate methods and their range of validity in correspondence to different choices of the parameters describing the system are brought to light.
2009
Ferraro, E., Scala, M., Migliore, R., Napoli, A. (2009). Non-Markovian dissipative dynamics of two coupled qubits in independent reservoirs: Comparison between exact solutions and master-equation approaches. PHYSICAL REVIEW A, 80, 042112-1-042112-6 [10.1103/PhysRevA.80.042112].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/46437
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