Wald's formulation of this quantity states that it is the Noether charge of the diffeomorphism symmetry in n-dimensional gravitation, and this quantity is used to define the Immirzi parameter in loop quantum gravity. Susskind and Uglum computed it in the infinite mass limit via superstring theory. T'Hooft attempted to use the brick-wall model to calculate it, and the fact that it is maximal for a given volume leads to the holographic principle. The constant of proportionality for this quantity is equal to 1 divided by four times the Planck length squared, and the classical no hair theorem implies that this quantity is zero. The formula for this quantity sets it directly proportional to the area, and was derived by Bekenstein, who considered an object falling past the event horizon, then applied a generalized form of the Second Law of Thermodynamics. For 10 points, name this quantity equa
Wald's formulation of this quantity states that it is the Noether charge of the diffeomorphism symmetry in n-dimensional gravitation, and this quantity is used to define the Immirzi parameter in loop quantum gravity. Susskind and Uglum computed it in the infinite mass limit via superstring theory. T'Hooft attempted to use the brick-wall model to calculate it, and the fact that it is maximal for a given volume leads to the holographic principle. The constant of proportionality for this quantity is equal to 1 divided by four times the Planck length squared, and the classical no hair theorem implies that this quantity is zero. The formula for this quantity sets it directly proportional to the area, and was derived by Bekenstein, who considered an object falling past the event horizon, then applied a generalized form of the Second Law of Thermodynamics. For 10 points, name this quantity equal to the disorder carried by a black hole.
Wald's formulation of this quantity states that it is the Noether charge of the diffeomorphism symmetry in n-dimensional gravitation, and this quantity is used to define the Immirzi parameter in loop quantum gravity.
Black hole {entropy} (accept Hawking-{Bekenstein entropy} or {Hawking entropy})