6533b82cfe1ef96bd128f5e1
RESEARCH PRODUCT
Comparison of non-Markovianity criteria in a qubit system under random external fields
Giuseppe CompagnoMaria MannoneRosario Lo Francosubject
education.field_of_studyQuantum PhysicsBasis (linear algebra)PopulationFOS: Physical sciencesNon-MarkovianityConstruct (python library)Condensed Matter PhysicsAtomic and Molecular Physics and OpticsAction (physics)Settore FIS/03 - Fisica Della MateriaSettore FIS/02 - Fisica Teorica Modelli e Metodi MatematiciQubitOpen quantum systemMaster equationDissipative systemStatistical physicseducationQuantum Physics (quant-ph)Mathematical PhysicsMathematicsdescription
We give the map representing the evolution of a qubit under the action of non-dissipative random external fields. From this map we construct the corresponding master equation that in turn allows us to phenomenologically introduce population damping of the qubit system. We then compare, in this system, the time-regions when non-Markovianity is present on the basis of different criteria both for the non-dissipative and dissipative case. We show that the adopted criteria agree both in the non-dissipative case and in the presence of population damping.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-01-01 |