标题： 磁场对光束的共振纠缠 显示英文标题

标题： Resonant entanglement of photon beams by a magnetic field

摘要： 尽管光子不与外部磁场相互作用，但在存在带电环境的情况下，该磁场可能会间接影响光子。 这开启了一种有趣的可能性，可以在不使用任何晶体器件的情况下连续控制光束的纠缠。 我们在一个适当的QED模型框架内研究了这种可能性。 在近似情况下发现，这种纠缠具有共振性质，即在某些磁场强度下表现出峰值行为，这取决于光束方向、磁场方向和带电介质的参数。 展示了说明上述纠缠度的共振行为的数值计算以及一些总结性 remarks。 显示英文摘要

摘要： In spite of the fact that photons do not interact with an external magnetic field, the latter field may indirectly affect photons in the presence of a charged environment. This opens up an interesting possibility to continuously control the entanglement of photon beams without using any crystalline devices. We study this possibility in the framework of an adequate QED model. In an approximation it was discovered that such entanglement has a resonant nature, namely, a peak behavior at certain magnetic field strengths, depending on characteristics of photon beams direction of the magnetic field and parameters of the charged medium. Numerical calculations illustrating the above-mentioned resonant behavior of the entanglement measure and some concluding remarks are presented.