6533b7d7fe1ef96bd1267a0b
RESEARCH PRODUCT
Quantum correlations in generalized spin star system
Francesca PalumboAnna NapoliAntonio Messinasubject
Statistics and ProbabilityPhysicsDISSOCIATION-CONSTANTSQuantum discordQuantum dynamicsTETRAETHYLAMMONIUM IODIDEStatistical and Nonlinear PhysicsObservable25 DEGREES CSODIUM-CHLORIDEHEAT-CAPACITIESIONIC-STRENGTH DEPENDENCEMOLECULAR-WEIGHTQuantum mechanicsQuantum processQuantum operationQuantum algorithmACTIVITY-COEFFICIENTSIONIZATION-CONSTANTQuantumCOMPLEX-FORMATIONMathematical PhysicsSpin-½description
The problem of detecting quantum signatures in the correlations formed in dynamical evolution of quantum bipartite systems receives a lot of attention in current literature. Generally speaking, the occurrence of correlations between two observables of a system does not necessarily reflect nonclassical behaviour. In this paper, the exact dynamics of a pair of uncoupled spins 1/2 interacting with a common spin 1/2 bath is investigated. Starting from a separable initial condition, the ability of the system to develop purely quantum correlations is brought to light. Physical interpretation of the concurrence function as well as a suggestion on how to measure it are given.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2006-09-01 |