On the Holographic Entanglement Entropy for Non‐smooth Entangling Curves in AdS4

@article{Pastras2018OnTH,
  title={On the Holographic Entanglement Entropy for Non‐smooth Entangling Curves in AdS4},
  author={Georgios Pastras},
  journal={Fortschritte der Physik},
  year={2018},
  volume={66}
}
We extend the calculations of holographic entanglement entropy in AdS4 for entangling curves with singular non‐smooth points that generalize cusps. Our calculations are based on minimal surfaces that correspond to elliptic solutions of the corresponding Pohlmeyer reduced system. For these minimal surfaces, the entangling curve contains singular points that are not cusps, but the joint point of two logarithmic spirals one being the rotation of the other by a given angle δφ . It turns out that… 
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