Jacob Bekenstein: Theory

Jacob Bekenstein was Mexican-Israeli physicist. Explore interesting quotes on theory.

Jacob Bekenstein: 12 quotes 0 likes

“We show that it is natural to introduce the concept of black-hole entropy as the measure of information about a black-hole interior which is inaccessible to an exterior observer. Considerations of simplicity and consistency, and dimensional arguments indicate that the black-hole entropy is equal to the ratio of the black-hole area to the square of the Planck length times a dimensionless constant of order unity. A different approach making use of the specific properties of Kerr black holes and of concepts from information theory leads to the same conclusion, and suggests a definite value for the constant.”

Jacob Bekenstein

[Black Holes and Entropy, Phys. Rev. D, 7, 8, 2333–2346, 15 April 1973, 10.1103/PhysRevD.7.2333]

Nature , Time

“The DM halo hypothesis is evidently an attempt to resolve the acceleration discrepancy within orthodox gravitation theory. But in coming to terms with this discrepancy, suspicion fell on Newtonian gravity already early in the game. Zwicky, who had exposed the acceleration discrepancy in clusters of galaxies …, opined much later that the discrepancy may reflect a failure of conventional physics …”

Jacob Bekenstein

[The modified Newtonian dynamics—MOND and its implications for new physics, arXiv preprint astro-ph/0701848, 27 March 2007, https://arxiv.org/abs/astro-ph/0701848] (p. 2)

Game , Failure

“There is a prescription that works well, MOND, but the reason it works so well is not known. You may say that MOND tells us how the real theory of gravity should look.”

Jacob Bekenstein

as quoted in: [Milgrom, Mordehai, MOND from a brane-world picture, arXiv preprint arXiv:1804.05840, 2018, https://arxiv.org/abs/1804.05840] (p. 2)