Abdel-Khalek Sayed, Berrada Kamal, Algarni Mariam, Eleuch Hichem
Department of Mathematics and Statistics, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia.
Department of Physics, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11432, Saudi Arabia.
Entropy (Basel). 2021 Oct 31;23(11):1442. doi: 10.3390/e23111442.
By using the Born Markovian master equation, we study the relationship among the Einstein-Podolsky-Rosen (EPR) steering, Bell nonlocality, and quantum entanglement of entangled coherent states (ECSs) under decoherence. We illustrate the dynamical behavior of the three types of correlations for various optical field strength regimes. In general, we find that correlation measurements begin at their maximum and decline over time. We find that quantum steering and nonlocality behave similarly in terms of photon number during dynamics. Furthermore, we discover that ECSs with steerability can violate the Bell inequality, and that not every ECS with Bell nonlocality is steerable. In the current work, without the memory stored in the environment, some of the initial states with maximal values of quantum steering, Bell nonlocality, and entanglement can provide a delayed loss of that value during temporal evolution, which is of interest to the current study.
通过使用玻恩马尔可夫主方程，我们研究了退相干下纠缠相干态（ECS）的爱因斯坦 - 波多尔斯基 - 罗森（EPR）引导、贝尔非定域性和量子纠缠之间的关系。我们阐述了在各种光场强度 regime 下这三种关联的动力学行为。一般来说，我们发现关联测量从其最大值开始并随时间下降。我们发现量子引导和非定域性在动力学过程中的光子数方面表现相似。此外，我们发现具有可引导性的ECS可以违反贝尔不等式，并且并非每个具有贝尔非定域性的ECS都是可引导的。在当前工作中，在环境中没有存储记忆的情况下，一些具有量子引导、贝尔非定域性和纠缠最大值的初始态在时间演化过程中会出现该值的延迟损失，这是当前研究所关注的。
