Holographic entanglement entropy for hollow cones and banana shaped regions

Feb 22, 2016
23 pages
Published in:
  • JHEP 06 (2016) 052
  • Published: Jun 9, 2016
e-Print:
Report number:
  • HU-EP-16-05

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Abstract: (Springer)
We consider banana shaped regions as examples of compact regions, whose boundary has two conical singularities. Their regularised holographic entropy is calculated with all divergent as well as finite terms. The coefficient of the squared logarithmic divergence, also in such a case with internally curved boundary, agrees with that calculated in the literature for infinite circular cones with their internally flat boundary. For the otherwise conformally invariant coefficient of the ordinary logarithmic divergence an anomaly under exceptional conformal transformations is observed.
Note:
  • 22 pages, 6 figures, comment added after eq. (71), version as appeared in JHEP
  • AdS-CFT Correspondence
  • Differential and Algebraic Geometry
  • Gaugegravity correspondence
  • entropy: entanglement
  • entropy: holography
  • invariance: conformal
  • anomaly