论文标题
在3+1个尺寸的麦克斯韦场的纠缠熵上
On Entanglement Entropy of Maxwell fields in 3+1 dimensions with a slab geometry
论文作者
论文摘要
我们计算纯麦克斯韦理论中有限宽度平板的纠缠熵。我们发现，熵的很大一部分是由于一种模式的纠缠而造成的，该模式在横向磁场的自由度方面非本地。即使纠缠模式是非本地的，但它对熵的贡献是局部的，因为有限厚度的平板的熵等于边界的熵，并在平板的厚度中校正指数。
We calculate the entanglement entropy of a slab of finite width in the pure Maxwell theory. We find that a large part of entropy is contributed by the entanglement of a mode, nonlocal in terms of the transverse magnetic field degrees of freedom. Even though the entangled mode is nonlocal, its contribution to the entropy is local in the sense that the entropy of a slab of a finite thickness is equal to the entropy of the boundary plus a correction exponential in thickness of the slab.
