Enhancing non-local correlations in the bipartite partitions of two qubit-system with non-mutual interaction

Journal Article · Tue Mar 15 04:00:00 EDT 2016 · Annals of Physics

DOI:https://doi.org/10.1016/J.AOP.2015.12.011· OSTI ID:22560300

Mohamed, A. -B.A., ^[1]

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1. College of Sciences and Humanities, Prince Sattam Bin Abdulaziz University, Al-Aflaj (Saudi Arabia)

Several quantum-mechanical correlations, notably, quantum entanglement, measurement-induced nonlocality and Bell nonlocality are studied for a two qubit-system having no mutual interaction. Analytical expressions for the measures of these quantum-mechanical correlations of different bipartite partitions of the system are obtained, for initially two entangled qubits and the two photons are in their vacuum states. It is found that the qubits-fields interaction leads to the loss and gain of the initial quantum correlations. The lost initial quantum correlations transfer from the qubits to the cavity fields. It is found that the maximal violation of Bell’s inequality is occurring when the quantum correlations of both the logarithmic negativity and measurement-induced nonlocality reach particular values. The maximal violation of Bell’s inequality occurs only for certain bipartite partitions of the system. The frequency detuning leads to quick oscillations of the quantum correlations and inhibits their transfer from the qubits to the cavity modes. It is also found that the dynamical behavior of the quantum correlation clearly depends on the qubit distribution angle.

• OSTI ID: 22560300
• Journal Information: Annals of Physics, Journal Name: Annals of Physics Journal Issue: Complete Vol. 366; ISSN 0003-4916; ISSN APNYA6
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BELL THEOREM
CORRELATIONS
GAIN
LOCALITY
LOSSES
OSCILLATIONS
PARTITION
PHOTONS
QUANTUM ENTANGLEMENT
QUANTUM MECHANICS
QUBITS
VACUUM STATES