Dynamics of Non Classically Reproducible Entanglement

Abstract

We investigate when the quantum correlations of a bipartite system, under the influence of environments with memory, are not reproducible with certainty by a classical local hidden variable model. To this purpose, we compare the dynamics of a Bell inequality with that of entanglement, as measured by concurrence. We find time regions when Bell inequality is not violated even in correspondence to high values of concurrence (up to $\approx 0.8$). We also suggest that these results may be observed by adopting a modification of a recent experimental optical setup. These findings indicate that even highly entangled systems cannot be exploited with certainty in contexts where the non classical reproducibility of quantum correlations is required.

4 pages, 3 figures

References in corpus (8)

• Quantum Communication
• Finite-Time Disentanglement via Spontaneous Emission
• Non-Markovian effects on the dynamics of entanglement
• Protecting entanglement via the quantum Zeno effect
• Entanglement dynamics of two independent qubits in environments with and without memory
• All bipartite entangled states display some hidden nonlocality
• Bell inequality violation versus entanglement in presence of local decoherence
• Finite time decoherence could be suppressed efficiently in photonic crystal

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• Disentanglement, Bell-nonlocality violation and teleportation capacity of the decaying tripartite states
• Quantum Correlations in non-Markovian Environments
• Maximal steered coherence and its conversion to entanglement in multiple bosonic reservoirs
• Overview on the phenomenon of two-qubit entanglement revivals in classical environments
• Dynamics of Entanglement and Bell-nonlocality for Two Stochastic Qubits with Dipole-Dipole Interaction
• Quantum Correlations Between Identical and Unidentical Atoms in a Dissipative Environment
• Understanding entanglement sudden death through multipartite entanglement and quantum correlations
• Time-invariant entanglement and sudden death of non-locality
• Optimized experimental settings for the best detection of quantum nonlocality
• Bell violation versus geometric measure of quantum discord and their dynamical behavior
• Non-Markovianity and Clauser-Horne-Shimony-Holt (CHSH)-Bell inequality violation in quantum dissipative systems
• Decay of nonlocality due to adiabatic and quantum noise in the solid state
• Sudden violation of the CHSH inequality in a two qubits system
• Violation of the "information-disturbance relationship" in finite-time quantum measurements