- Document #:
- LIGO-P1600049-v4
- Document type:
- P - Publications

- Abstract:
- The recent LIGO discovery of the binary black holes merging and forming a

single Kerr black hole provides the first and unique opportunity to test the

black hole area-entropy theorem or the second law of black hole

thermodynamics. We discuss the test of the entropy law \ using the mass and

spin estimates from the LIGO event GW150914. Because both the initial and

final states consist only of black holes with high entropy and coherent

gravitational waves with very low entropy, the test is essentially geometrical

and ideal. However, the precision and the test itself are limited by

interdependencies and errors in parameter estimation. Future studies on

similar BBH events are critical precision tests of black hole area-entropy theorem.

- Topics:

- Authors:

- Notes and Changes:
- More robust conceptually with area-entropy law treated as a general thermodynamical constraint on gravity, independent of GR. Noted earlier note by Walter an Vitale on test of area theorem for the event.

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