Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Holographic Discreteness of Inflationary Perturbations   The holographic entropy bound is used to estimate the quantum-gravitational
discreteness of inflationary perturbations. In the context of scalar inflaton
perturbations produced during standard slow-roll inflation, but assuming that
horizon-scale perturbations ``freeze out'' in discrete steps separated by one
bit of total observable entropy, it is shown that the Hilbert space of a
typical horizon-scale inflaton perturbation is equivalent to that of about 10^5
binary spins-- approximately the inverse of the final scalar metric
perturbation amplitude, independent of other parameters. Holography thus
suggests that in a broad class of fundamental theories, inflationary
perturbations carry a limited amount of information (about 10^5 bits per mode)
and should therefore display discreteness not predicted by the standard field
theory. Some manifestations of this discreteness may be observable in cosmic
background anisotropy.

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The categories of this paper are: comp-gas
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The categories of this paper are: stat
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The categories of this paper are: supr-con
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The categories of this paper are: physics
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The categories of this paper are: hep-ex
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The categories of this paper are: math
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The categories of this paper are: hep-lat
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The categories of this paper are: econ
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The categories of this paper are: nucl-ex
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The categories of this paper are: chao-dyn
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The categories of this paper are: patt-sol
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The categories of this paper are: nlin
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The categories of this paper are: adap-org
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The categories of this paper are: eess
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The categories of this paper are: chem-ph
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The categories of this paper are: bayes-an