Membrane paradigm realized?

Details Membrane paradigm realized? Membrane paradigm realized?

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010gregr..42.2331m&link_type=abstract

General Relativity and Gravitation, Volume 42, Issue 10, pp.2331-2336

Physics

6

Black Holes, Information Paradox

Scientific paper

Are there any degrees of freedom on the black hole horizon? Using the ‘membrane paradigm’ we can reproduce coarse-grained physics outside the hole by assuming a fictitious membrane just outside the horizon. But to solve the information puzzle we need ‘real’ degrees of freedom at the horizon, which can modify Hawking’s evolution of quantum modes. We argue that recent results on gravitational microstates imply a set of real degrees of freedom just outside the horizon; the state of the hole is a linear combination of rapidly oscillating gravitational solutions with support concentrated just outside the horizon radius. The collective behavior of these microstate solutions may give a realization of the membrane paradigm, with the fictitious membrane now replaced by real, explicit degrees of freedom.

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