dimmer系统在与两个自旋热库态纠缠的情况下，热库的耦合系数、自旋投影以及时间变化，都会对纠缠度产生影响．作者对此问题进行了深入研究．%Von Neumann entropy was applied to the study of the evolution of the entanglement for a dimmer and the bath of independent spins in the paper. The result shows that the entanglement is directly related to coupled strength, detuning and intensity of the field.
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