Strominger and Vafa p-brane model of black holes

sunkissed23
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As I was reading Stephen Hawking's "The Universe in a Nutshell," I came across a discussion of Strominger and Vafa's p-brane model of black holes. Hawking describes that for certain classes of black holes, the p-brane model predicts that information that falls into the black holes will be stored in the wave function on the waves of the p-branes.

Does anyone know what Hawking means by "information?"


Throughout the entire book Hawking never explains what he means by this.
 
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http://en.wikipedia.org/wiki/Physical_information
 
To solve this, I first used the units to work out that a= m* a/m, i.e. t=z/λ. This would allow you to determine the time duration within an interval section by section and then add this to the previous ones to obtain the age of the respective layer. However, this would require a constant thickness per year for each interval. However, since this is most likely not the case, my next consideration was that the age must be the integral of a 1/λ(z) function, which I cannot model.

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