Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The first law of black hole mechanics in the Einstein-Maxwell theory
  revisited   We re-derive the first law of black hole mechanics in the context of the
Einstein-Maxwell theory in a gauge-invariant way introducing "momentum maps"
associated to field strengths and the vectors that generate their symmetries.
These objects play the role of generalized thermodynamical potentials in the
first law and satisfy generalized zeroth laws, as first observed in the context
of principal gauge bundles by Prabhu, but they can be generalized to more
complex situations. We test our ideas on the $d$-dimensional
Reissner-Nordstr\"om-Tangherlini black hole.

8
The categories of this paper are: hep-ex
1
The categories of this paper are: cs
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
12
The categories of this paper are: nucl-th
35
The categories of this paper are: mtrl-th
19
The categories of this paper are: eess
15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
9
The categories of this paper are: nlin
13
The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
23
The categories of this paper are: solv-int