Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Higher-Dimensional Supertranslations and Weinberg's Soft Graviton
  Theorem   Asymptotic symmetries of theories with gravity in d=2m+2 spacetime dimensions
are reconsidered for m>1 in light of recent results concerning d=4 BMS
symmetries. Weinberg's soft graviton theorem in 2m+2 dimensions is re-expressed
as a Ward identity for the gravitational S-matrix. The corresponding asymptotic
symmetries are identified with 2m+2-dimensional supertranslations. An alternate
derivation of these asymptotic symmetries as diffeomorphisms which preserve
finite-energy boundary conditions at null infinity and act non-trivially on
physical data is given. Our results differ from those of previous analyses
whose stronger boundary conditions precluded supertranslations for d>4. We find
for all even d that supertranslation symmetry is spontaneously broken in the
conventional vacuum and identify soft gravitons as the corresponding Goldstone
bosons.

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The categories of this paper are: nlin
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The categories of this paper are: alg-geom
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The categories of this paper are: supr-con
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The categories of this paper are: chao-dyn
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The categories of this paper are: adap-org
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The categories of this paper are: nucl-th
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The categories of this paper are: astro-ph
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The categories of this paper are: eess
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The categories of this paper are: math
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The categories of this paper are: chem-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: cond-mat
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The categories of this paper are: stat
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The categories of this paper are: nucl-ex
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The categories of this paper are: patt-sol
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The categories of this paper are: plasm-ph