https://doi.org/10.1140/epjc/s10052-020-08732-y
Letter
Introducing the inverse hoop conjecture for black holes
1
The Ruppin Academic Center, 40250, Emeq Hefer, Israel
2
The Hadassah Academic College, 91010, Jerusalem, Israel
Received:
23
November
2020
Accepted:
2
December
2020
Published online:
13
December
2020
It is conjectured that stationary black holes are characterized by the inverse hoop relation 
, where 
and 
are respectively the black-hole surface area and the circumference length of the smallest ring that can engulf the black-hole horizon in every direction. We explicitly prove that generic Kerr–Newman–(anti)-de Sitter black holes conform to this conjectured area-circumference relation.
© The Author(s) 2020
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