Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Some notes on the Kodama state, maximal symmetry, and the isolated
  horizon boundary condition   We recall some well and some less known results about the Kodama state and
the related $\theta$ ambiguity in defining canonical variables. Based on them,
we make some comments highlighting that the Kodama state for real connection
variables can be given a precise meaning and that it implements a vacuum peaked
on a (in a suitable sense) maximally symmetric geometry. We also highlight the
similarity of this construction with the isolated horizon boundary condition $F
\propto \Sigma$ and stress that it is, in agreement with earlier work,
inadequate to define the notion of a quantum horizon.

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The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio
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The categories of this paper are: comp-gas
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The categories of this paper are: alg-geom
2
The categories of this paper are: math
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The categories of this paper are: dg-ga
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The categories of this paper are: nucl-th
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The categories of this paper are: cmp-lg
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The categories of this paper are: nucl-ex
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The categories of this paper are: supr-con
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The categories of this paper are: cs
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The categories of this paper are: solv-int
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The categories of this paper are: funct-an
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The categories of this paper are: hep-ex