Ten theses on black hole entropy [An article from: Studies in History and Philosophy of Modern Physics]

This digital document is a journal article from Studies in History and Philosophy of Modern Physics, published by Elsevier in 2005. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
I present a viewpoint on black hole thermodynamics according to which the entropy: derives from horizon ''degrees of freedom''; is finite because the deep structure of spacetime is discrete; is ''objective'' thanks to the distinguished coarse graining provided by the horizon; and obeys the second law of thermodynamics precisely because the effective dynamics of the exterior region is not unitary.