6533b7d8fe1ef96bd126ae7d
RESEARCH PRODUCT
On the validity of non-Markovian master equation approaches for the entanglement dynamics of two-qubit systems
M. ScalaRosanna MiglioreAnna NapoliElena Ferrarosubject
Entanglement Open quantum systems Non-Markovian master equationsDynamics (mechanics)Markov processConcurrenceQuantum PhysicsQuantum entanglementCondensed Matter PhysicsAtomic and Molecular Physics and Opticssymbols.namesakeExact solutions in general relativityClassical mechanicsQubitMaster equationsymbolsStatistical physicsDissipative dynamicsMathematical PhysicsMathematicsdescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-09-30 | Physica Scripta |