### no-hair theorem

(proposition that a black hole only has mass, rotation, and charge)

The **no-hair theorem** is the proposition that a black hole's
state consists only of its mass, rotation, and electric charge
(other than its position, velocity, and the attitude of its rotation
axis), with no other qualities independent of these. The word
*hair* is used metaphorically for any other qualities.
A proof of the proposition would rest on the correctness of a good
bit of physics, e.g., it might follow from general relativity, but proofs only
of some black hole models have been accomplished. Its correctness is
the conventional view of black holes but interest remains in
proofs/disproofs/counter-examples. Data from GW detections
are claimed to be consistent with the proposition.
The implication of the theorem is that two black holes that are the
same regarding those three values are identical, even, for example,
if one was formed of matter and the other antimatter.

(*black holes,physics*)
**Further reading:**

https://en.wikipedia.org/wiki/No-hair_theorem

**Referenced by pages:**

black hole model

black hole (BH)

Index