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RESEARCH PRODUCT
Long-Time Preservation of Nonlocal Entanglement
Giuseppe CompagnoBruno BellomoRosario Lo Francosubject
PhysicsSettore FIS/02 - Fisica Teorica Modelli E Metodi MatematiciHealth (social science)General Computer ScienceGeneral MathematicsGeneral EngineeringQuantum entanglementEducationQuantum nonlocalityGeneral EnergyBell's theoremNon-locality Bell inequality open quantum systemsGeneral Environmental ScienceMathematical physicsdescription
We investigate how nonlocal entanglement, as identified by violations of a Bell inequality, may be preserved during the evolution. Our system consists of two qubits each embedded in a zero-temperature bosonic reservoir evolving independently and initially in an entangled mixed state. We show that the violation of the Bell inequality can be related to the single-qubit population of excited state in such a way that, by appropriately choosing structured environments that give rise to sufficiently high values of population trapping, long-time preservation of nonlocal entanglement can be correspondingly achieved.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-12-01 | Advanced Science Letters |