Abstract
The paper explores the non-locality dynamics of two moving atoms in a hybrid nonlinear system, which describes a nondegenerate parametric amplifier cavity containing two moving atoms with Stark shift interactions. Based on the Bell function, uncertainty-induced non-locality and concurrence, the two moving atomic non-locality is calculated numerically, when the cavity is filled initially by pair coherent fields. The results showed that the hybrid nonlinear qubit-cavity interactions have a high ability to generating quantum correlations. The amount of the generated quantum correlation can be improved and accelerated significantly with the increase of the time-dependent qubit location parameter. The increase of the Stark shift ratio and the difference between the mean-number photons of the two cavity fields leads to a clear deterioration of the generated quantum correlation.
Highlights
INTRODUCTIONThe generation of quantum information resources (as: coherence, entanglement and other types of quantum correlation) due to hybrid nonlinear interactions between two-level atomic systems (qubits) are highly substantial for quantum technologies [1]
The generation of quantum information resources due to hybrid nonlinear interactions between two-level atomic systems are highly substantial for quantum technologies [1]
We have considered a hybrid nonlinear system describes a nondegenerate parametric amplifier cavity containing two effective moving atoms with Stark shift interactions
Summary
The generation of quantum information resources (as: coherence, entanglement and other types of quantum correlation) due to hybrid nonlinear interactions between two-level atomic systems (qubits) are highly substantial for quantum technologies [1]. It is found that The time-dependent qubit-cavity interactions can be enhanced the nonclassicality of the system and the dynamics of entanglement [26,27,28] Another important and widely used concept is the entanglement pair coherent state (PCS), which is very useful for primary tasks in quantum information theory [29,30,31], such as teleportation, Bell nonlocality, and non-classical features of sub-Poissonian distribution and squeezing [32, 33].
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